Home / 141,165.40-211,715.76-84,255.36

Finding the Fourth Proportional to 141,165.40, 211,715.76 and 84,255.36

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Solution

The fourth proportional to 141,165.40, 211,715.76 and 84,255.36 is: 126,363.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,165.40 : 211,715.76 = 84,255.36 : x
  2. Step 2: Convert to fraction form
    141,165.40/211,715.76 = 84,255.36/x
  3. Step 3: Cross multiply
    141,165.40x = 211,715.76 × 84,255.36
  4. Step 4: Simplify right side
    141,165.40x = 17,838,187,576.47
  5. Step 5: Solve for x
    x = 17,838,187,576.47/141,165.40
  6. Step 6: Final answer
    x = 126,363.74

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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.