Home / 132,451.86-182,708.75-78,754.20

Finding the Fourth Proportional to 132,451.86, 182,708.75 and 78,754.20

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Solution

The fourth proportional to 132,451.86, 182,708.75 and 78,754.20 is: 108,636.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,451.86 : 182,708.75 = 78,754.20 : x
  2. Step 2: Convert to fraction form
    132,451.86/182,708.75 = 78,754.20/x
  3. Step 3: Cross multiply
    132,451.86x = 182,708.75 × 78,754.20
  4. Step 4: Simplify right side
    132,451.86x = 14,389,081,439.25
  5. Step 5: Solve for x
    x = 14,389,081,439.25/132,451.86
  6. Step 6: Final answer
    x = 108,636.31

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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.