Home / 141,625.20-212,437.80-128,722.80

Finding the Fourth Proportional to 141,625.20, 212,437.80 and 128,722.80

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Solution

The fourth proportional to 141,625.20, 212,437.80 and 128,722.80 is: 193,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,625.20 : 212,437.80 = 128,722.80 : x
  2. Step 2: Convert to fraction form
    141,625.20/212,437.80 = 128,722.80/x
  3. Step 3: Cross multiply
    141,625.20x = 212,437.80 × 128,722.80
  4. Step 4: Simplify right side
    141,625.20x = 27,345,588,441.84
  5. Step 5: Solve for x
    x = 27,345,588,441.84/141,625.20
  6. Step 6: Final answer
    x = 193,084.20

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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.