Home / 122,512.47-169,061.97-71,528.03

Finding the Fourth Proportional to 122,512.47, 169,061.97 and 71,528.03

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Solution

The fourth proportional to 122,512.47, 169,061.97 and 71,528.03 is: 98,705.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,512.47 : 169,061.97 = 71,528.03 : x
  2. Step 2: Convert to fraction form
    122,512.47/169,061.97 = 71,528.03/x
  3. Step 3: Cross multiply
    122,512.47x = 169,061.97 × 71,528.03
  4. Step 4: Simplify right side
    122,512.47x = 12,092,668,816.71
  5. Step 5: Solve for x
    x = 12,092,668,816.71/122,512.47
  6. Step 6: Final answer
    x = 98,705.62

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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.