Home / 148,051.60-221,967.96-76,872.04

Finding the Fourth Proportional to 148,051.60, 221,967.96 and 76,872.04

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Solution

The fourth proportional to 148,051.60, 221,967.96 and 76,872.04 is: 115,251.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,051.60 : 221,967.96 = 76,872.04 : x
  2. Step 2: Convert to fraction form
    148,051.60/221,967.96 = 76,872.04/x
  3. Step 3: Cross multiply
    148,051.60x = 221,967.96 × 76,872.04
  4. Step 4: Simplify right side
    148,051.60x = 17,063,129,899.84
  5. Step 5: Solve for x
    x = 17,063,129,899.84/148,051.60
  6. Step 6: Final answer
    x = 115,251.24

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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.