Home / 102,357.52-141,251.25-57,035.32

Finding the Fourth Proportional to 102,357.52, 141,251.25 and 57,035.32

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Solution

The fourth proportional to 102,357.52, 141,251.25 and 57,035.32 is: 78,707.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,357.52 : 141,251.25 = 57,035.32 : x
  2. Step 2: Convert to fraction form
    102,357.52/141,251.25 = 57,035.32/x
  3. Step 3: Cross multiply
    102,357.52x = 141,251.25 × 57,035.32
  4. Step 4: Simplify right side
    102,357.52x = 8,056,310,244.15
  5. Step 5: Solve for x
    x = 8,056,310,244.15/102,357.52
  6. Step 6: Final answer
    x = 78,707.56

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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.