Home / 156,815.07-216,389.18-88,818.48

Finding the Fourth Proportional to 156,815.07, 216,389.18 and 88,818.48

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Solution

The fourth proportional to 156,815.07, 216,389.18 and 88,818.48 is: 122,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,815.07 : 216,389.18 = 88,818.48 : x
  2. Step 2: Convert to fraction form
    156,815.07/216,389.18 = 88,818.48/x
  3. Step 3: Cross multiply
    156,815.07x = 216,389.18 × 88,818.48
  4. Step 4: Simplify right side
    156,815.07x = 19,219,357,611.95
  5. Step 5: Solve for x
    x = 19,219,357,611.95/156,815.07
  6. Step 6: Final answer
    x = 122,560.65

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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.