Home / 129,682.14-178,961.18-70,066.14

Finding the Fourth Proportional to 129,682.14, 178,961.18 and 70,066.14

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Solution

The fourth proportional to 129,682.14, 178,961.18 and 70,066.14 is: 96,691.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,682.14 : 178,961.18 = 70,066.14 : x
  2. Step 2: Convert to fraction form
    129,682.14/178,961.18 = 70,066.14/x
  3. Step 3: Cross multiply
    129,682.14x = 178,961.18 × 70,066.14
  4. Step 4: Simplify right side
    129,682.14x = 12,539,119,092.45
  5. Step 5: Solve for x
    x = 12,539,119,092.45/129,682.14
  6. Step 6: Final answer
    x = 96,691.18

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1.5x scale

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.