Home / 112,808.08-155,691.48-65,051.92

Finding the Fourth Proportional to 112,808.08, 155,691.48 and 65,051.92

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Solution

The fourth proportional to 112,808.08, 155,691.48 and 65,051.92 is: 89,781.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,808.08 : 155,691.48 = 65,051.92 : x
  2. Step 2: Convert to fraction form
    112,808.08/155,691.48 = 65,051.92/x
  3. Step 3: Cross multiply
    112,808.08x = 155,691.48 × 65,051.92
  4. Step 4: Simplify right side
    112,808.08x = 10,128,029,701.64
  5. Step 5: Solve for x
    x = 10,128,029,701.64/112,808.08
  6. Step 6: Final answer
    x = 89,781.07

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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.