Home / 124,981.14-172,469.68-71,283.45

Finding the Fourth Proportional to 124,981.14, 172,469.68 and 71,283.45

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Solution

The fourth proportional to 124,981.14, 172,469.68 and 71,283.45 is: 98,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,981.14 : 172,469.68 = 71,283.45 : x
  2. Step 2: Convert to fraction form
    124,981.14/172,469.68 = 71,283.45/x
  3. Step 3: Cross multiply
    124,981.14x = 172,469.68 × 71,283.45
  4. Step 4: Simplify right side
    124,981.14x = 12,294,234,063.76
  5. Step 5: Solve for x
    x = 12,294,234,063.76/124,981.14
  6. Step 6: Final answer
    x = 98,368.72

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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.