Home / 98,409.18-147,498.33-42,279.66

Finding the Fourth Proportional to 98,409.18, 147,498.33 and 42,279.66

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Solution

The fourth proportional to 98,409.18, 147,498.33 and 42,279.66 is: 63,369.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,409.18 : 147,498.33 = 42,279.66 : x
  2. Step 2: Convert to fraction form
    98,409.18/147,498.33 = 42,279.66/x
  3. Step 3: Cross multiply
    98,409.18x = 147,498.33 × 42,279.66
  4. Step 4: Simplify right side
    98,409.18x = 6,236,179,242.97
  5. Step 5: Solve for x
    x = 6,236,179,242.97/98,409.18
  6. Step 6: Final answer
    x = 63,369.89

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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.