Home / 142,751.46-196,988.45-79,084.65

Finding the Fourth Proportional to 142,751.46, 196,988.45 and 79,084.65

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Solution

The fourth proportional to 142,751.46, 196,988.45 and 79,084.65 is: 109,132.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,751.46 : 196,988.45 = 79,084.65 : x
  2. Step 2: Convert to fraction form
    142,751.46/196,988.45 = 79,084.65/x
  3. Step 3: Cross multiply
    142,751.46x = 196,988.45 × 79,084.65
  4. Step 4: Simplify right side
    142,751.46x = 15,578,762,226.87
  5. Step 5: Solve for x
    x = 15,578,762,226.87/142,751.46
  6. Step 6: Final answer
    x = 109,132.07

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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.