Home / 139,968,142.70-209,952,214.05-131,458,088.30

Finding the Fourth Proportional to 139,968,142.70, 209,952,214.05 and 131,458,088.30

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Solution

The fourth proportional to 139,968,142.70, 209,952,214.05 and 131,458,088.30 is: 197,187,132.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,142.70 : 209,952,214.05 = 131,458,088.30 : x
  2. Step 2: Convert to fraction form
    139,968,142.70/209,952,214.05 = 131,458,088.30/x
  3. Step 3: Cross multiply
    139,968,142.70x = 209,952,214.05 × 131,458,088.30
  4. Step 4: Simplify right side
    139,968,142.70x = 27,599,916,693,365,400
  5. Step 5: Solve for x
    x = 27,599,916,693,365,400/139,968,142.70
  6. Step 6: Final answer
    x = 197,187,132.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.