Home / 124,918.39-172,387.61-68,329.77

Finding the Fourth Proportional to 124,918.39, 172,387.61 and 68,329.77

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Solution

The fourth proportional to 124,918.39, 172,387.61 and 68,329.77 is: 94,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,918.39 : 172,387.61 = 68,329.77 : x
  2. Step 2: Convert to fraction form
    124,918.39/172,387.61 = 68,329.77/x
  3. Step 3: Cross multiply
    124,918.39x = 172,387.61 × 68,329.77
  4. Step 4: Simplify right side
    124,918.39x = 11,779,205,742.15
  5. Step 5: Solve for x
    x = 11,779,205,742.15/124,918.39
  6. Step 6: Final answer
    x = 94,295.21

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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.