Home / 129,346.04-178,344.87-88,529.85

Finding the Fourth Proportional to 129,346.04, 178,344.87 and 88,529.85

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Solution

The fourth proportional to 129,346.04, 178,344.87 and 88,529.85 is: 122,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,346.04 : 178,344.87 = 88,529.85 : x
  2. Step 2: Convert to fraction form
    129,346.04/178,344.87 = 88,529.85/x
  3. Step 3: Cross multiply
    129,346.04x = 178,344.87 × 88,529.85
  4. Step 4: Simplify right side
    129,346.04x = 15,788,844,589.37
  5. Step 5: Solve for x
    x = 15,788,844,589.37/129,346.04
  6. Step 6: Final answer
    x = 122,066.70

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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.