Home / 231,176.13-346,792.20-81,385.75

Finding the Fourth Proportional to 231,176.13, 346,792.20 and 81,385.75

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Solution

The fourth proportional to 231,176.13, 346,792.20 and 81,385.75 is: 122,088.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,176.13 : 346,792.20 = 81,385.75 : x
  2. Step 2: Convert to fraction form
    231,176.13/346,792.20 = 81,385.75/x
  3. Step 3: Cross multiply
    231,176.13x = 346,792.20 × 81,385.75
  4. Step 4: Simplify right side
    231,176.13x = 28,223,943,291.15
  5. Step 5: Solve for x
    x = 28,223,943,291.15/231,176.13
  6. Step 6: Final answer
    x = 122,088.48

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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.