Home / 99,218.57-148,836.74-28,141.91

Finding the Fourth Proportional to 99,218.57, 148,836.74 and 28,141.91

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Solution

The fourth proportional to 99,218.57, 148,836.74 and 28,141.91 is: 42,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,218.57 : 148,836.74 = 28,141.91 : x
  2. Step 2: Convert to fraction form
    99,218.57/148,836.74 = 28,141.91/x
  3. Step 3: Cross multiply
    99,218.57x = 148,836.74 × 28,141.91
  4. Step 4: Simplify right side
    99,218.57x = 4,188,549,554.71
  5. Step 5: Solve for x
    x = 4,188,549,554.71/99,218.57
  6. Step 6: Final answer
    x = 42,215.38

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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.