Home / 124,747,000.90-172,142,121.99-72,532,332.16

Finding the Fourth Proportional to 124,747,000.90, 172,142,121.99 and 72,532,332.16

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Solution

The fourth proportional to 124,747,000.90, 172,142,121.99 and 72,532,332.16 is: 100,089,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,747,000.90 : 172,142,121.99 = 72,532,332.16 : x
  2. Step 2: Convert to fraction form
    124,747,000.90/172,142,121.99 = 72,532,332.16/x
  3. Step 3: Cross multiply
    124,747,000.90x = 172,142,121.99 × 72,532,332.16
  4. Step 4: Simplify right side
    124,747,000.90x = 12,485,869,570,905,920
  5. Step 5: Solve for x
    x = 12,485,869,570,905,920/124,747,000.90
  6. Step 6: Final answer
    x = 100,089,537.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.