Home / 156,731.20-235,096.80-154,398.40

Finding the Fourth Proportional to 156,731.20, 235,096.80 and 154,398.40

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Solution

The fourth proportional to 156,731.20, 235,096.80 and 154,398.40 is: 231,597.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,731.20 : 235,096.80 = 154,398.40 : x
  2. Step 2: Convert to fraction form
    156,731.20/235,096.80 = 154,398.40/x
  3. Step 3: Cross multiply
    156,731.20x = 235,096.80 × 154,398.40
  4. Step 4: Simplify right side
    156,731.20x = 36,298,569,765.12
  5. Step 5: Solve for x
    x = 36,298,569,765.12/156,731.20
  6. Step 6: Final answer
    x = 231,597.60

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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.