Home / 156,002.18-215,282.43-84,382.20

Finding the Fourth Proportional to 156,002.18, 215,282.43 and 84,382.20

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Solution

The fourth proportional to 156,002.18, 215,282.43 and 84,382.20 is: 116,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,002.18 : 215,282.43 = 84,382.20 : x
  2. Step 2: Convert to fraction form
    156,002.18/215,282.43 = 84,382.20/x
  3. Step 3: Cross multiply
    156,002.18x = 215,282.43 × 84,382.20
  4. Step 4: Simplify right side
    156,002.18x = 18,166,005,064.75
  5. Step 5: Solve for x
    x = 18,166,005,064.75/156,002.18
  6. Step 6: Final answer
    x = 116,447.13

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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.