Home / 122,559.48-169,102.26-71,543.15

Finding the Fourth Proportional to 122,559.48, 169,102.26 and 71,543.15

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Solution

The fourth proportional to 122,559.48, 169,102.26 and 71,543.15 is: 98,712.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,559.48 : 169,102.26 = 71,543.15 : x
  2. Step 2: Convert to fraction form
    122,559.48/169,102.26 = 71,543.15/x
  3. Step 3: Cross multiply
    122,559.48x = 169,102.26 × 71,543.15
  4. Step 4: Simplify right side
    122,559.48x = 12,098,107,939.93
  5. Step 5: Solve for x
    x = 12,098,107,939.93/122,559.48
  6. Step 6: Final answer
    x = 98,712.14

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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.