Home / 100,878.10-151,337.07-29,801.95

Finding the Fourth Proportional to 100,878.10, 151,337.07 and 29,801.95

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Solution

The fourth proportional to 100,878.10, 151,337.07 and 29,801.95 is: 44,708.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,878.10 : 151,337.07 = 29,801.95 : x
  2. Step 2: Convert to fraction form
    100,878.10/151,337.07 = 29,801.95/x
  3. Step 3: Cross multiply
    100,878.10x = 151,337.07 × 29,801.95
  4. Step 4: Simplify right side
    100,878.10x = 4,510,139,793.29
  5. Step 5: Solve for x
    x = 4,510,139,793.29/100,878.10
  6. Step 6: Final answer
    x = 44,708.81

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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.