Home / 98,901.95-148,377.42-28,781.46

Finding the Fourth Proportional to 98,901.95, 148,377.42 and 28,781.46

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Solution

The fourth proportional to 98,901.95, 148,377.42 and 28,781.46 is: 43,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,901.95 : 148,377.42 = 28,781.46 : x
  2. Step 2: Convert to fraction form
    98,901.95/148,377.42 = 28,781.46/x
  3. Step 3: Cross multiply
    98,901.95x = 148,377.42 × 28,781.46
  4. Step 4: Simplify right side
    98,901.95x = 4,270,518,778.63
  5. Step 5: Solve for x
    x = 4,270,518,778.63/98,901.95
  6. Step 6: Final answer
    x = 43,179.32

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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.