Home / 129,678.85-178,752.28-97,366.83

Finding the Fourth Proportional to 129,678.85, 178,752.28 and 97,366.83

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Solution

The fourth proportional to 129,678.85, 178,752.28 and 97,366.83 is: 134,212.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,678.85 : 178,752.28 = 97,366.83 : x
  2. Step 2: Convert to fraction form
    129,678.85/178,752.28 = 97,366.83/x
  3. Step 3: Cross multiply
    129,678.85x = 178,752.28 × 97,366.83
  4. Step 4: Simplify right side
    129,678.85x = 17,404,543,772.84
  5. Step 5: Solve for x
    x = 17,404,543,772.84/129,678.85
  6. Step 6: Final answer
    x = 134,212.66

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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.