Home / 129,259.40-193,428.30-89,630.60

Finding the Fourth Proportional to 129,259.40, 193,428.30 and 89,630.60

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Solution

The fourth proportional to 129,259.40, 193,428.30 and 89,630.60 is: 134,126.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,259.40 : 193,428.30 = 89,630.60 : x
  2. Step 2: Convert to fraction form
    129,259.40/193,428.30 = 89,630.60/x
  3. Step 3: Cross multiply
    129,259.40x = 193,428.30 × 89,630.60
  4. Step 4: Simplify right side
    129,259.40x = 17,337,094,585.98
  5. Step 5: Solve for x
    x = 17,337,094,585.98/129,259.40
  6. Step 6: Final answer
    x = 134,126.37

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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.