Home / 102,329.60-141,214.72-57,617.92

Finding the Fourth Proportional to 102,329.60, 141,214.72 and 57,617.92

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Solution

The fourth proportional to 102,329.60, 141,214.72 and 57,617.92 is: 79,512.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,329.60 : 141,214.72 = 57,617.92 : x
  2. Step 2: Convert to fraction form
    102,329.60/141,214.72 = 57,617.92/x
  3. Step 3: Cross multiply
    102,329.60x = 141,214.72 × 57,617.92
  4. Step 4: Simplify right side
    102,329.60x = 8,136,498,439.78
  5. Step 5: Solve for x
    x = 8,136,498,439.78/102,329.60
  6. Step 6: Final answer
    x = 79,512.66

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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.