Home / 124,781.95-172,199.11-71,071.97

Finding the Fourth Proportional to 124,781.95, 172,199.11 and 71,071.97

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Solution

The fourth proportional to 124,781.95, 172,199.11 and 71,071.97 is: 98,079.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,781.95 : 172,199.11 = 71,071.97 : x
  2. Step 2: Convert to fraction form
    124,781.95/172,199.11 = 71,071.97/x
  3. Step 3: Cross multiply
    124,781.95x = 172,199.11 × 71,071.97
  4. Step 4: Simplify right side
    124,781.95x = 12,238,529,118.95
  5. Step 5: Solve for x
    x = 12,238,529,118.95/124,781.95
  6. Step 6: Final answer
    x = 98,079.32

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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.