Home / 148,918.40-223,377.60-85,714.10

Finding the Fourth Proportional to 148,918.40, 223,377.60 and 85,714.10

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Solution

The fourth proportional to 148,918.40, 223,377.60 and 85,714.10 is: 128,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,918.40 : 223,377.60 = 85,714.10 : x
  2. Step 2: Convert to fraction form
    148,918.40/223,377.60 = 85,714.10/x
  3. Step 3: Cross multiply
    148,918.40x = 223,377.60 × 85,714.10
  4. Step 4: Simplify right side
    148,918.40x = 19,146,609,944.16
  5. Step 5: Solve for x
    x = 19,146,609,944.16/148,918.40
  6. Step 6: Final answer
    x = 128,571.15

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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.