Home / 156,271.10-215,655.15-84,651.12

Finding the Fourth Proportional to 156,271.10, 215,655.15 and 84,651.12

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Solution

The fourth proportional to 156,271.10, 215,655.15 and 84,651.12 is: 116,819.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,271.10 : 215,655.15 = 84,651.12 : x
  2. Step 2: Convert to fraction form
    156,271.10/215,655.15 = 84,651.12/x
  3. Step 3: Cross multiply
    156,271.10x = 215,655.15 × 84,651.12
  4. Step 4: Simplify right side
    156,271.10x = 18,255,449,981.27
  5. Step 5: Solve for x
    x = 18,255,449,981.27/156,271.10
  6. Step 6: Final answer
    x = 116,819.11

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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.