Home / 121,888.04-182,758.30-79,717.32

Finding the Fourth Proportional to 121,888.04, 182,758.30 and 79,717.32

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Solution

The fourth proportional to 121,888.04, 182,758.30 and 79,717.32 is: 119,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,888.04 : 182,758.30 = 79,717.32 : x
  2. Step 2: Convert to fraction form
    121,888.04/182,758.30 = 79,717.32/x
  3. Step 3: Cross multiply
    121,888.04x = 182,758.30 × 79,717.32
  4. Step 4: Simplify right side
    121,888.04x = 14,569,001,883.76
  5. Step 5: Solve for x
    x = 14,569,001,883.76/121,888.04
  6. Step 6: Final answer
    x = 119,527.74

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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.