Home / 156,550.98-216,041-84,931.53

Finding the Fourth Proportional to 156,550.98, 216,041 and 84,931.53

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Solution

The fourth proportional to 156,550.98, 216,041 and 84,931.53 is: 117,205.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,550.98 : 216,041 = 84,931.53 : x
  2. Step 2: Convert to fraction form
    156,550.98/216,041 = 84,931.53/x
  3. Step 3: Cross multiply
    156,550.98x = 216,041 × 84,931.53
  4. Step 4: Simplify right side
    156,550.98x = 18,348,692,672.73
  5. Step 5: Solve for x
    x = 18,348,692,672.73/156,550.98
  6. Step 6: Final answer
    x = 117,205.86

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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.