Home / 141,014.79-211,454.15-81,865.35

Finding the Fourth Proportional to 141,014.79, 211,454.15 and 81,865.35

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Solution

The fourth proportional to 141,014.79, 211,454.15 and 81,865.35 is: 122,758.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,014.79 : 211,454.15 = 81,865.35 : x
  2. Step 2: Convert to fraction form
    141,014.79/211,454.15 = 81,865.35/x
  3. Step 3: Cross multiply
    141,014.79x = 211,454.15 × 81,865.35
  4. Step 4: Simplify right side
    141,014.79x = 17,310,767,589.38
  5. Step 5: Solve for x
    x = 17,310,767,589.38/141,014.79
  6. Step 6: Final answer
    x = 122,758.52

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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.