Home / 120,587.52-180,855.18-76,154.88

Finding the Fourth Proportional to 120,587.52, 180,855.18 and 76,154.88

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Solution

The fourth proportional to 120,587.52, 180,855.18 and 76,154.88 is: 114,215.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,587.52 : 180,855.18 = 76,154.88 : x
  2. Step 2: Convert to fraction form
    120,587.52/180,855.18 = 76,154.88/x
  3. Step 3: Cross multiply
    120,587.52x = 180,855.18 × 76,154.88
  4. Step 4: Simplify right side
    120,587.52x = 13,773,004,530.28
  5. Step 5: Solve for x
    x = 13,773,004,530.28/120,587.52
  6. Step 6: Final answer
    x = 114,215.84

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1.5x scale

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.