Home / 132,219.72-182,498.40-78,487.56

Finding the Fourth Proportional to 132,219.72, 182,498.40 and 78,487.56

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Solution

The fourth proportional to 132,219.72, 182,498.40 and 78,487.56 is: 108,333.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,219.72 : 182,498.40 = 78,487.56 : x
  2. Step 2: Convert to fraction form
    132,219.72/182,498.40 = 78,487.56/x
  3. Step 3: Cross multiply
    132,219.72x = 182,498.40 × 78,487.56
  4. Step 4: Simplify right side
    132,219.72x = 14,323,854,119.90
  5. Step 5: Solve for x
    x = 14,323,854,119.90/132,219.72
  6. Step 6: Final answer
    x = 108,333.72

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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.