Home / 141,301.20-212,024.48-78,109.52

Finding the Fourth Proportional to 141,301.20, 212,024.48 and 78,109.52

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Solution

The fourth proportional to 141,301.20, 212,024.48 and 78,109.52 is: 117,204.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,301.20 : 212,024.48 = 78,109.52 : x
  2. Step 2: Convert to fraction form
    141,301.20/212,024.48 = 78,109.52/x
  3. Step 3: Cross multiply
    141,301.20x = 212,024.48 × 78,109.52
  4. Step 4: Simplify right side
    141,301.20x = 16,561,130,361.05
  5. Step 5: Solve for x
    x = 16,561,130,361.05/141,301.20
  6. Step 6: Final answer
    x = 117,204.46

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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.