Home / 129,966.04-195,021.96-70,805.86

Finding the Fourth Proportional to 129,966.04, 195,021.96 and 70,805.86

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Solution

The fourth proportional to 129,966.04, 195,021.96 and 70,805.86 is: 106,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,966.04 : 195,021.96 = 70,805.86 : x
  2. Step 2: Convert to fraction form
    129,966.04/195,021.96 = 70,805.86/x
  3. Step 3: Cross multiply
    129,966.04x = 195,021.96 × 70,805.86
  4. Step 4: Simplify right side
    129,966.04x = 13,808,697,596.69
  5. Step 5: Solve for x
    x = 13,808,697,596.69/129,966.04
  6. Step 6: Final answer
    x = 106,248.51

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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.