Home / 154,090.40-231,176.10-48,909.20

Finding the Fourth Proportional to 154,090.40, 231,176.10 and 48,909.20

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Solution

The fourth proportional to 154,090.40, 231,176.10 and 48,909.20 is: 73,376.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,090.40 : 231,176.10 = 48,909.20 : x
  2. Step 2: Convert to fraction form
    154,090.40/231,176.10 = 48,909.20/x
  3. Step 3: Cross multiply
    154,090.40x = 231,176.10 × 48,909.20
  4. Step 4: Simplify right side
    154,090.40x = 11,306,638,110.12
  5. Step 5: Solve for x
    x = 11,306,638,110.12/154,090.40
  6. Step 6: Final answer
    x = 73,376.65

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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.