Home / 154,948.40-232,422.60-128,704.40

Finding the Fourth Proportional to 154,948.40, 232,422.60 and 128,704.40

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Solution

The fourth proportional to 154,948.40, 232,422.60 and 128,704.40 is: 193,056.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,948.40 : 232,422.60 = 128,704.40 : x
  2. Step 2: Convert to fraction form
    154,948.40/232,422.60 = 128,704.40/x
  3. Step 3: Cross multiply
    154,948.40x = 232,422.60 × 128,704.40
  4. Step 4: Simplify right side
    154,948.40x = 29,913,811,279.44
  5. Step 5: Solve for x
    x = 29,913,811,279.44/154,948.40
  6. Step 6: Final answer
    x = 193,056.60

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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.