Home / 141,965.20-212,688.60-115,526.80

Finding the Fourth Proportional to 141,965.20, 212,688.60 and 115,526.80

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Solution

The fourth proportional to 141,965.20, 212,688.60 and 115,526.80 is: 173,079.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,965.20 : 212,688.60 = 115,526.80 : x
  2. Step 2: Convert to fraction form
    141,965.20/212,688.60 = 115,526.80/x
  3. Step 3: Cross multiply
    141,965.20x = 212,688.60 × 115,526.80
  4. Step 4: Simplify right side
    141,965.20x = 24,571,233,354.48
  5. Step 5: Solve for x
    x = 24,571,233,354.48/141,965.20
  6. Step 6: Final answer
    x = 173,079.27

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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.