Home / 132,327.80-182,641.20-81,384.32

Finding the Fourth Proportional to 132,327.80, 182,641.20 and 81,384.32

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Solution

The fourth proportional to 132,327.80, 182,641.20 and 81,384.32 is: 112,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,327.80 : 182,641.20 = 81,384.32 : x
  2. Step 2: Convert to fraction form
    132,327.80/182,641.20 = 81,384.32/x
  3. Step 3: Cross multiply
    132,327.80x = 182,641.20 × 81,384.32
  4. Step 4: Simplify right side
    132,327.80x = 14,864,129,865.98
  5. Step 5: Solve for x
    x = 14,864,129,865.98/132,327.80
  6. Step 6: Final answer
    x = 112,328.10

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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.