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Finding the Fourth Proportional to 112,423.40, 168,519.90 and 65,652.20

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Solution

The fourth proportional to 112,423.40, 168,519.90 and 65,652.20 is: 98,411.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,423.40 : 168,519.90 = 65,652.20 : x
  2. Step 2: Convert to fraction form
    112,423.40/168,519.90 = 65,652.20/x
  3. Step 3: Cross multiply
    112,423.40x = 168,519.90 × 65,652.20
  4. Step 4: Simplify right side
    112,423.40x = 11,063,702,178.78
  5. Step 5: Solve for x
    x = 11,063,702,178.78/112,423.40
  6. Step 6: Final answer
    x = 98,411.03

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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.