Home / 154,995.20-232,492.80-66,421.70

Finding the Fourth Proportional to 154,995.20, 232,492.80 and 66,421.70

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Solution

The fourth proportional to 154,995.20, 232,492.80 and 66,421.70 is: 99,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,995.20 : 232,492.80 = 66,421.70 : x
  2. Step 2: Convert to fraction form
    154,995.20/232,492.80 = 66,421.70/x
  3. Step 3: Cross multiply
    154,995.20x = 232,492.80 × 66,421.70
  4. Step 4: Simplify right side
    154,995.20x = 15,442,567,013.76
  5. Step 5: Solve for x
    x = 15,442,567,013.76/154,995.20
  6. Step 6: Final answer
    x = 99,632.55

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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.