Home / 156,815.27-216,389.43-88,818.66

Finding the Fourth Proportional to 156,815.27, 216,389.43 and 88,818.66

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Solution

The fourth proportional to 156,815.27, 216,389.43 and 88,818.66 is: 122,560.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.27 : 216,389.43 = 88,818.66 : x
  2. Step 2: Convert to fraction form
    156,815.27/216,389.43 = 88,818.66/x
  3. Step 3: Cross multiply
    156,815.27x = 216,389.43 × 88,818.66
  4. Step 4: Simplify right side
    156,815.27x = 19,219,419,210.76
  5. Step 5: Solve for x
    x = 19,219,419,210.76/156,815.27
  6. Step 6: Final answer
    x = 122,560.89

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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.