Home / 141,856.20-212,525.10-115,417.80

Finding the Fourth Proportional to 141,856.20, 212,525.10 and 115,417.80

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Solution

The fourth proportional to 141,856.20, 212,525.10 and 115,417.80 is: 172,915.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,856.20 : 212,525.10 = 115,417.80 : x
  2. Step 2: Convert to fraction form
    141,856.20/212,525.10 = 115,417.80/x
  3. Step 3: Cross multiply
    141,856.20x = 212,525.10 × 115,417.80
  4. Step 4: Simplify right side
    141,856.20x = 24,529,179,486.78
  5. Step 5: Solve for x
    x = 24,529,179,486.78/141,856.20
  6. Step 6: Final answer
    x = 172,915.81

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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.