Home / 124,986.62-172,484.98-71,280.38

Finding the Fourth Proportional to 124,986.62, 172,484.98 and 71,280.38

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Solution

The fourth proportional to 124,986.62, 172,484.98 and 71,280.38 is: 98,368.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,986.62 : 172,484.98 = 71,280.38 : x
  2. Step 2: Convert to fraction form
    124,986.62/172,484.98 = 71,280.38/x
  3. Step 3: Cross multiply
    124,986.62x = 172,484.98 × 71,280.38
  4. Step 4: Simplify right side
    124,986.62x = 12,294,794,918.69
  5. Step 5: Solve for x
    x = 12,294,794,918.69/124,986.62
  6. Step 6: Final answer
    x = 98,368.89

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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.