Home / 141,879.11-212,849.80-42,047.12

Finding the Fourth Proportional to 141,879.11, 212,849.80 and 42,047.12

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Solution

The fourth proportional to 141,879.11, 212,849.80 and 42,047.12 is: 63,079.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,879.11 : 212,849.80 = 42,047.12 : x
  2. Step 2: Convert to fraction form
    141,879.11/212,849.80 = 42,047.12/x
  3. Step 3: Cross multiply
    141,879.11x = 212,849.80 × 42,047.12
  4. Step 4: Simplify right side
    141,879.11x = 8,949,721,509.58
  5. Step 5: Solve for x
    x = 8,949,721,509.58/141,879.11
  6. Step 6: Final answer
    x = 63,079.91

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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.