Home / 129,337.40-194,006.10-120,006.20

Finding the Fourth Proportional to 129,337.40, 194,006.10 and 120,006.20

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Solution

The fourth proportional to 129,337.40, 194,006.10 and 120,006.20 is: 180,009.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,337.40 : 194,006.10 = 120,006.20 : x
  2. Step 2: Convert to fraction form
    129,337.40/194,006.10 = 120,006.20/x
  3. Step 3: Cross multiply
    129,337.40x = 194,006.10 × 120,006.20
  4. Step 4: Simplify right side
    129,337.40x = 23,281,934,837.82
  5. Step 5: Solve for x
    x = 23,281,934,837.82/129,337.40
  6. Step 6: Final answer
    x = 180,009.30

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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.