Home / 156,685.43-216,011.67-107,625.56

Finding the Fourth Proportional to 156,685.43, 216,011.67 and 107,625.56

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Solution

The fourth proportional to 156,685.43, 216,011.67 and 107,625.56 is: 148,376.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,685.43 : 216,011.67 = 107,625.56 : x
  2. Step 2: Convert to fraction form
    156,685.43/216,011.67 = 107,625.56/x
  3. Step 3: Cross multiply
    156,685.43x = 216,011.67 × 107,625.56
  4. Step 4: Simplify right side
    156,685.43x = 23,248,375,870.23
  5. Step 5: Solve for x
    x = 23,248,375,870.23/156,685.43
  6. Step 6: Final answer
    x = 148,376.12

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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.