Home / 124,869.59-172,321.91-71,153.45

Finding the Fourth Proportional to 124,869.59, 172,321.91 and 71,153.45

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Solution

The fourth proportional to 124,869.59, 172,321.91 and 71,153.45 is: 98,192.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,869.59 : 172,321.91 = 71,153.45 : x
  2. Step 2: Convert to fraction form
    124,869.59/172,321.91 = 71,153.45/x
  3. Step 3: Cross multiply
    124,869.59x = 172,321.91 × 71,153.45
  4. Step 4: Simplify right side
    124,869.59x = 12,261,297,189.71
  5. Step 5: Solve for x
    x = 12,261,297,189.71/124,869.59
  6. Step 6: Final answer
    x = 98,192.82

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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.