Home / 124,746,999.90-172,142,120.61-72,532,331.16

Finding the Fourth Proportional to 124,746,999.90, 172,142,120.61 and 72,532,331.16

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Solution

The fourth proportional to 124,746,999.90, 172,142,120.61 and 72,532,331.16 is: 100,089,535.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,746,999.90 : 172,142,120.61 = 72,532,331.16 : x
  2. Step 2: Convert to fraction form
    124,746,999.90/172,142,120.61 = 72,532,331.16/x
  3. Step 3: Cross multiply
    124,746,999.90x = 172,142,120.61 × 72,532,331.16
  4. Step 4: Simplify right side
    124,746,999.90x = 12,485,869,298,669,182
  5. Step 5: Solve for x
    x = 12,485,869,298,669,182/124,746,999.90
  6. Step 6: Final answer
    x = 100,089,535.69

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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.