Home / 154,543.60-231,815.40-99,247.60

Finding the Fourth Proportional to 154,543.60, 231,815.40 and 99,247.60

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Solution

The fourth proportional to 154,543.60, 231,815.40 and 99,247.60 is: 148,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,543.60 : 231,815.40 = 99,247.60 : x
  2. Step 2: Convert to fraction form
    154,543.60/231,815.40 = 99,247.60/x
  3. Step 3: Cross multiply
    154,543.60x = 231,815.40 × 99,247.60
  4. Step 4: Simplify right side
    154,543.60x = 23,007,122,093.04
  5. Step 5: Solve for x
    x = 23,007,122,093.04/154,543.60
  6. Step 6: Final answer
    x = 148,871.40

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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.