Home / 124,918.13-172,391.10-68,329.46

Finding the Fourth Proportional to 124,918.13, 172,391.10 and 68,329.46

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Solution

The fourth proportional to 124,918.13, 172,391.10 and 68,329.46 is: 94,296.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,918.13 : 172,391.10 = 68,329.46 : x
  2. Step 2: Convert to fraction form
    124,918.13/172,391.10 = 68,329.46/x
  3. Step 3: Cross multiply
    124,918.13x = 172,391.10 × 68,329.46
  4. Step 4: Simplify right side
    124,918.13x = 11,779,390,771.81
  5. Step 5: Solve for x
    x = 11,779,390,771.81/124,918.13
  6. Step 6: Final answer
    x = 94,296.89

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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.