Home / 129,024.60-193,536.90-121,248.60

Finding the Fourth Proportional to 129,024.60, 193,536.90 and 121,248.60

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Solution

The fourth proportional to 129,024.60, 193,536.90 and 121,248.60 is: 181,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,024.60 : 193,536.90 = 121,248.60 : x
  2. Step 2: Convert to fraction form
    129,024.60/193,536.90 = 121,248.60/x
  3. Step 3: Cross multiply
    129,024.60x = 193,536.90 × 121,248.60
  4. Step 4: Simplify right side
    129,024.60x = 23,466,078,173.34
  5. Step 5: Solve for x
    x = 23,466,078,173.34/129,024.60
  6. Step 6: Final answer
    x = 181,872.90

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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.