Home / 106,316.28-159,474.64-99,820.88

Finding the Fourth Proportional to 106,316.28, 159,474.64 and 99,820.88

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Solution

The fourth proportional to 106,316.28, 159,474.64 and 99,820.88 is: 149,731.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,316.28 : 159,474.64 = 99,820.88 : x
  2. Step 2: Convert to fraction form
    106,316.28/159,474.64 = 99,820.88/x
  3. Step 3: Cross multiply
    106,316.28x = 159,474.64 × 99,820.88
  4. Step 4: Simplify right side
    106,316.28x = 15,918,898,902.48
  5. Step 5: Solve for x
    x = 15,918,898,902.48/106,316.28
  6. Step 6: Final answer
    x = 149,731.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.