Home / 132,385.44-182,718.48-78,660.12

Finding the Fourth Proportional to 132,385.44, 182,718.48 and 78,660.12

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Solution

The fourth proportional to 132,385.44, 182,718.48 and 78,660.12 is: 108,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,385.44 : 182,718.48 = 78,660.12 : x
  2. Step 2: Convert to fraction form
    132,385.44/182,718.48 = 78,660.12/x
  3. Step 3: Cross multiply
    132,385.44x = 182,718.48 × 78,660.12
  4. Step 4: Simplify right side
    132,385.44x = 14,372,657,563.02
  5. Step 5: Solve for x
    x = 14,372,657,563.02/132,385.44
  6. Step 6: Final answer
    x = 108,566.75

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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.