Home / 141,826.80-212,740.20-128,002.80

Finding the Fourth Proportional to 141,826.80, 212,740.20 and 128,002.80

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Solution

The fourth proportional to 141,826.80, 212,740.20 and 128,002.80 is: 192,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,826.80 : 212,740.20 = 128,002.80 : x
  2. Step 2: Convert to fraction form
    141,826.80/212,740.20 = 128,002.80/x
  3. Step 3: Cross multiply
    141,826.80x = 212,740.20 × 128,002.80
  4. Step 4: Simplify right side
    141,826.80x = 27,231,341,272.56
  5. Step 5: Solve for x
    x = 27,231,341,272.56/141,826.80
  6. Step 6: Final answer
    x = 192,004.20

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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.