Home / 169,870.30-254,999.85-99,789.10

Finding the Fourth Proportional to 169,870.30, 254,999.85 and 99,789.10

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Solution

The fourth proportional to 169,870.30, 254,999.85 and 99,789.10 is: 149,797.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,870.30 : 254,999.85 = 99,789.10 : x
  2. Step 2: Convert to fraction form
    169,870.30/254,999.85 = 99,789.10/x
  3. Step 3: Cross multiply
    169,870.30x = 254,999.85 × 99,789.10
  4. Step 4: Simplify right side
    169,870.30x = 25,446,205,531.64
  5. Step 5: Solve for x
    x = 25,446,205,531.64/169,870.30
  6. Step 6: Final answer
    x = 149,797.85

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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.