Home / 156,785.50-216,363.82-85,165.57

Finding the Fourth Proportional to 156,785.50, 216,363.82 and 85,165.57

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Solution

The fourth proportional to 156,785.50, 216,363.82 and 85,165.57 is: 117,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,785.50 : 216,363.82 = 85,165.57 : x
  2. Step 2: Convert to fraction form
    156,785.50/216,363.82 = 85,165.57/x
  3. Step 3: Cross multiply
    156,785.50x = 216,363.82 × 85,165.57
  4. Step 4: Simplify right side
    156,785.50x = 18,426,747,631.85
  5. Step 5: Solve for x
    x = 18,426,747,631.85/156,785.50
  6. Step 6: Final answer
    x = 117,528.40

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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.