Home / 99,621.30-149,513.55-98,843.70

Finding the Fourth Proportional to 99,621.30, 149,513.55 and 98,843.70

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Solution

The fourth proportional to 99,621.30, 149,513.55 and 98,843.70 is: 148,346.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,621.30 : 149,513.55 = 98,843.70 : x
  2. Step 2: Convert to fraction form
    99,621.30/149,513.55 = 98,843.70/x
  3. Step 3: Cross multiply
    99,621.30x = 149,513.55 × 98,843.70
  4. Step 4: Simplify right side
    99,621.30x = 14,778,472,482.14
  5. Step 5: Solve for x
    x = 14,778,472,482.14/99,621.30
  6. Step 6: Final answer
    x = 148,346.51

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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.