Home / 156,821.40-235,232.10-154,229.40

Finding the Fourth Proportional to 156,821.40, 235,232.10 and 154,229.40

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Solution

The fourth proportional to 156,821.40, 235,232.10 and 154,229.40 is: 231,344.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,821.40 : 235,232.10 = 154,229.40 : x
  2. Step 2: Convert to fraction form
    156,821.40/235,232.10 = 154,229.40/x
  3. Step 3: Cross multiply
    156,821.40x = 235,232.10 × 154,229.40
  4. Step 4: Simplify right side
    156,821.40x = 36,279,705,643.74
  5. Step 5: Solve for x
    x = 36,279,705,643.74/156,821.40
  6. Step 6: Final answer
    x = 231,344.10

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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.