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Finding the Fourth Proportional to 154,882, 213,763.08 and 87,852.88

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Solution

The fourth proportional to 154,882, 213,763.08 and 87,852.88 is: 121,251.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,882 : 213,763.08 = 87,852.88 : x
  2. Step 2: Convert to fraction form
    154,882/213,763.08 = 87,852.88/x
  3. Step 3: Cross multiply
    154,882x = 213,763.08 × 87,852.88
  4. Step 4: Simplify right side
    154,882x = 18,779,702,215.67
  5. Step 5: Solve for x
    x = 18,779,702,215.67/154,882
  6. Step 6: Final answer
    x = 121,251.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.