Home / 141,838.10-212,757.15-71,708.30

Finding the Fourth Proportional to 141,838.10, 212,757.15 and 71,708.30

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Solution

The fourth proportional to 141,838.10, 212,757.15 and 71,708.30 is: 107,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,838.10 : 212,757.15 = 71,708.30 : x
  2. Step 2: Convert to fraction form
    141,838.10/212,757.15 = 71,708.30/x
  3. Step 3: Cross multiply
    141,838.10x = 212,757.15 × 71,708.30
  4. Step 4: Simplify right side
    141,838.10x = 15,256,453,539.35
  5. Step 5: Solve for x
    x = 15,256,453,539.35/141,838.10
  6. Step 6: Final answer
    x = 107,562.45

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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.