Home / 156,903.32-216,517.41-85,282.71

Finding the Fourth Proportional to 156,903.32, 216,517.41 and 85,282.71

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Solution

The fourth proportional to 156,903.32, 216,517.41 and 85,282.71 is: 117,685.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.32 : 216,517.41 = 85,282.71 : x
  2. Step 2: Convert to fraction form
    156,903.32/216,517.41 = 85,282.71/x
  3. Step 3: Cross multiply
    156,903.32x = 216,517.41 × 85,282.71
  4. Step 4: Simplify right side
    156,903.32x = 18,465,191,486.98
  5. Step 5: Solve for x
    x = 18,465,191,486.98/156,903.32
  6. Step 6: Final answer
    x = 117,685.16

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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.