Home / 124,781.25-172,188.32-71,055.57

Finding the Fourth Proportional to 124,781.25, 172,188.32 and 71,055.57

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Solution

The fourth proportional to 124,781.25, 172,188.32 and 71,055.57 is: 98,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,781.25 : 172,188.32 = 71,055.57 : x
  2. Step 2: Convert to fraction form
    124,781.25/172,188.32 = 71,055.57/x
  3. Step 3: Cross multiply
    124,781.25x = 172,188.32 × 71,055.57
  4. Step 4: Simplify right side
    124,781.25x = 12,234,938,869.66
  5. Step 5: Solve for x
    x = 12,234,938,869.66/124,781.25
  6. Step 6: Final answer
    x = 98,051.10

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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.