Home / 156,957.13-216,609.69-85,335.61

Finding the Fourth Proportional to 156,957.13, 216,609.69 and 85,335.61

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Solution

The fourth proportional to 156,957.13, 216,609.69 and 85,335.61 is: 117,767.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,957.13 : 216,609.69 = 85,335.61 : x
  2. Step 2: Convert to fraction form
    156,957.13/216,609.69 = 85,335.61/x
  3. Step 3: Cross multiply
    156,957.13x = 216,609.69 × 85,335.61
  4. Step 4: Simplify right side
    156,957.13x = 18,484,520,028.06
  5. Step 5: Solve for x
    x = 18,484,520,028.06/156,957.13
  6. Step 6: Final answer
    x = 117,767.95

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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.