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Finding the Fourth Proportional to 135,042.60, 202,401.90 and 56,116.20

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Solution

The fourth proportional to 135,042.60, 202,401.90 and 56,116.20 is: 84,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,042.60 : 202,401.90 = 56,116.20 : x
  2. Step 2: Convert to fraction form
    135,042.60/202,401.90 = 56,116.20/x
  3. Step 3: Cross multiply
    135,042.60x = 202,401.90 × 56,116.20
  4. Step 4: Simplify right side
    135,042.60x = 11,358,025,500.78
  5. Step 5: Solve for x
    x = 11,358,025,500.78/135,042.60
  6. Step 6: Final answer
    x = 84,106.98

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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.