Home / 129,005.20-193,248.60-73,536.40

Finding the Fourth Proportional to 129,005.20, 193,248.60 and 73,536.40

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Solution

The fourth proportional to 129,005.20, 193,248.60 and 73,536.40 is: 110,156.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,005.20 : 193,248.60 = 73,536.40 : x
  2. Step 2: Convert to fraction form
    129,005.20/193,248.60 = 73,536.40/x
  3. Step 3: Cross multiply
    129,005.20x = 193,248.60 × 73,536.40
  4. Step 4: Simplify right side
    129,005.20x = 14,210,806,349.04
  5. Step 5: Solve for x
    x = 14,210,806,349.04/129,005.20
  6. Step 6: Final answer
    x = 110,156.85

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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.