Home / 156,776.46-216,350.57-85,155.86

Finding the Fourth Proportional to 156,776.46, 216,350.57 and 85,155.86

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Solution

The fourth proportional to 156,776.46, 216,350.57 and 85,155.86 is: 117,514.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,776.46 : 216,350.57 = 85,155.86 : x
  2. Step 2: Convert to fraction form
    156,776.46/216,350.57 = 85,155.86/x
  3. Step 3: Cross multiply
    156,776.46x = 216,350.57 × 85,155.86
  4. Step 4: Simplify right side
    156,776.46x = 18,423,518,147.13
  5. Step 5: Solve for x
    x = 18,423,518,147.13/156,776.46
  6. Step 6: Final answer
    x = 117,514.57

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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.