Home / 139,968,110.70-209,952,166.05-71,943,662.70

Finding the Fourth Proportional to 139,968,110.70, 209,952,166.05 and 71,943,662.70

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Solution

The fourth proportional to 139,968,110.70, 209,952,166.05 and 71,943,662.70 is: 107,915,494.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,110.70 : 209,952,166.05 = 71,943,662.70 : x
  2. Step 2: Convert to fraction form
    139,968,110.70/209,952,166.05 = 71,943,662.70/x
  3. Step 3: Cross multiply
    139,968,110.70x = 209,952,166.05 × 71,943,662.70
  4. Step 4: Simplify right side
    139,968,110.70x = 15,104,727,817,435,592
  5. Step 5: Solve for x
    x = 15,104,727,817,435,592/139,968,110.70
  6. Step 6: Final answer
    x = 107,915,494.05

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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.