Home / 113,184.08-156,197.40-65,433.20

Finding the Fourth Proportional to 113,184.08, 156,197.40 and 65,433.20

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Solution

The fourth proportional to 113,184.08, 156,197.40 and 65,433.20 is: 90,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,184.08 : 156,197.40 = 65,433.20 : x
  2. Step 2: Convert to fraction form
    113,184.08/156,197.40 = 65,433.20/x
  3. Step 3: Cross multiply
    113,184.08x = 156,197.40 × 65,433.20
  4. Step 4: Simplify right side
    113,184.08x = 10,220,495,713.68
  5. Step 5: Solve for x
    x = 10,220,495,713.68/113,184.08
  6. Step 6: Final answer
    x = 90,299.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.