Home / 156,776.73-216,348.30-85,155.18

Finding the Fourth Proportional to 156,776.73, 216,348.30 and 85,155.18

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Solution

The fourth proportional to 156,776.73, 216,348.30 and 85,155.18 is: 117,512.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776.73 : 216,348.30 = 85,155.18 : x
  2. Step 2: Convert to fraction form
    156,776.73/216,348.30 = 85,155.18/x
  3. Step 3: Cross multiply
    156,776.73x = 216,348.30 × 85,155.18
  4. Step 4: Simplify right side
    156,776.73x = 18,423,178,429.19
  5. Step 5: Solve for x
    x = 18,423,178,429.19/156,776.73
  6. Step 6: Final answer
    x = 117,512.20

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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.