Home / 124,747,000.40-172,142,121.30-72,532,331.66

Finding the Fourth Proportional to 124,747,000.40, 172,142,121.30 and 72,532,331.66

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Solution

The fourth proportional to 124,747,000.40, 172,142,121.30 and 72,532,331.66 is: 100,089,536.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,747,000.40 : 172,142,121.30 = 72,532,331.66 : x
  2. Step 2: Convert to fraction form
    124,747,000.40/172,142,121.30 = 72,532,331.66/x
  3. Step 3: Cross multiply
    124,747,000.40x = 172,142,121.30 × 72,532,331.66
  4. Step 4: Simplify right side
    124,747,000.40x = 12,485,869,434,787,550
  5. Step 5: Solve for x
    x = 12,485,869,434,787,550/124,747,000.40
  6. Step 6: Final answer
    x = 100,089,536.38

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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.