Home / 120,526.10-180,616.35-88,687.70

Finding the Fourth Proportional to 120,526.10, 180,616.35 and 88,687.70

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Solution

The fourth proportional to 120,526.10, 180,616.35 and 88,687.70 is: 132,904.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,526.10 : 180,616.35 = 88,687.70 : x
  2. Step 2: Convert to fraction form
    120,526.10/180,616.35 = 88,687.70/x
  3. Step 3: Cross multiply
    120,526.10x = 180,616.35 × 88,687.70
  4. Step 4: Simplify right side
    120,526.10x = 16,018,448,663.90
  5. Step 5: Solve for x
    x = 16,018,448,663.90/120,526.10
  6. Step 6: Final answer
    x = 132,904.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.