Home / 239,929.16-359,882.80-79,993.85

Finding the Fourth Proportional to 239,929.16, 359,882.80 and 79,993.85

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Solution

The fourth proportional to 239,929.16, 359,882.80 and 79,993.85 is: 119,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,929.16 : 359,882.80 = 79,993.85 : x
  2. Step 2: Convert to fraction form
    239,929.16/359,882.80 = 79,993.85/x
  3. Step 3: Cross multiply
    239,929.16x = 359,882.80 × 79,993.85
  4. Step 4: Simplify right side
    239,929.16x = 28,788,408,721.38
  5. Step 5: Solve for x
    x = 28,788,408,721.38/239,929.16
  6. Step 6: Final answer
    x = 119,987.12

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1.5x scale

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.