Home / 139,968,102.30-209,952,153.45-105,955,878.30

Finding the Fourth Proportional to 139,968,102.30, 209,952,153.45 and 105,955,878.30

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Solution

The fourth proportional to 139,968,102.30, 209,952,153.45 and 105,955,878.30 is: 158,933,817.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,102.30 : 209,952,153.45 = 105,955,878.30 : x
  2. Step 2: Convert to fraction form
    139,968,102.30/209,952,153.45 = 105,955,878.30/x
  3. Step 3: Cross multiply
    139,968,102.30x = 209,952,153.45 × 105,955,878.30
  4. Step 4: Simplify right side
    139,968,102.30x = 22,245,664,819,771,124
  5. Step 5: Solve for x
    x = 22,245,664,819,771,124/139,968,102.30
  6. Step 6: Final answer
    x = 158,933,817.45

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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.