Home / 100,938.80-151,437.76-29,863.24

Finding the Fourth Proportional to 100,938.80, 151,437.76 and 29,863.24

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Solution

The fourth proportional to 100,938.80, 151,437.76 and 29,863.24 is: 44,803.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,938.80 : 151,437.76 = 29,863.24 : x
  2. Step 2: Convert to fraction form
    100,938.80/151,437.76 = 29,863.24/x
  3. Step 3: Cross multiply
    100,938.80x = 151,437.76 × 29,863.24
  4. Step 4: Simplify right side
    100,938.80x = 4,522,421,718.69
  5. Step 5: Solve for x
    x = 4,522,421,718.69/100,938.80
  6. Step 6: Final answer
    x = 44,803.60

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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.