Home / 154,663.40-231,995.10-147,405.80

Finding the Fourth Proportional to 154,663.40, 231,995.10 and 147,405.80

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Solution

The fourth proportional to 154,663.40, 231,995.10 and 147,405.80 is: 221,108.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,663.40 : 231,995.10 = 147,405.80 : x
  2. Step 2: Convert to fraction form
    154,663.40/231,995.10 = 147,405.80/x
  3. Step 3: Cross multiply
    154,663.40x = 231,995.10 × 147,405.80
  4. Step 4: Simplify right side
    154,663.40x = 34,197,423,311.58
  5. Step 5: Solve for x
    x = 34,197,423,311.58/154,663.40
  6. Step 6: Final answer
    x = 221,108.70

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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.