Home / 129,360.27-178,451.85-75,610.17

Finding the Fourth Proportional to 129,360.27, 178,451.85 and 75,610.17

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Solution

The fourth proportional to 129,360.27, 178,451.85 and 75,610.17 is: 104,303.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,360.27 : 178,451.85 = 75,610.17 : x
  2. Step 2: Convert to fraction form
    129,360.27/178,451.85 = 75,610.17/x
  3. Step 3: Cross multiply
    129,360.27x = 178,451.85 × 75,610.17
  4. Step 4: Simplify right side
    129,360.27x = 13,492,774,715.31
  5. Step 5: Solve for x
    x = 13,492,774,715.31/129,360.27
  6. Step 6: Final answer
    x = 104,303.85

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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.