Home / 141,356.20-212,034.42-66,421.38

Finding the Fourth Proportional to 141,356.20, 212,034.42 and 66,421.38

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Solution

The fourth proportional to 141,356.20, 212,034.42 and 66,421.38 is: 99,632.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,356.20 : 212,034.42 = 66,421.38 : x
  2. Step 2: Convert to fraction form
    141,356.20/212,034.42 = 66,421.38/x
  3. Step 3: Cross multiply
    141,356.20x = 212,034.42 × 66,421.38
  4. Step 4: Simplify right side
    141,356.20x = 14,083,618,783.90
  5. Step 5: Solve for x
    x = 14,083,618,783.90/141,356.20
  6. Step 6: Final answer
    x = 99,632.13

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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.