Home / 99,364.20-149,042.88-28,287.28

Finding the Fourth Proportional to 99,364.20, 149,042.88 and 28,287.28

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Solution

The fourth proportional to 99,364.20, 149,042.88 and 28,287.28 is: 42,429.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,364.20 : 149,042.88 = 28,287.28 : x
  2. Step 2: Convert to fraction form
    99,364.20/149,042.88 = 28,287.28/x
  3. Step 3: Cross multiply
    99,364.20x = 149,042.88 × 28,287.28
  4. Step 4: Simplify right side
    99,364.20x = 4,216,017,305.96
  5. Step 5: Solve for x
    x = 4,216,017,305.96/99,364.20
  6. Step 6: Final answer
    x = 42,429.94

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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.