Home / 140,838.79-211,116.03-88,285.18

Finding the Fourth Proportional to 140,838.79, 211,116.03 and 88,285.18

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Solution

The fourth proportional to 140,838.79, 211,116.03 and 88,285.18 is: 132,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,838.79 : 211,116.03 = 88,285.18 : x
  2. Step 2: Convert to fraction form
    140,838.79/211,116.03 = 88,285.18/x
  3. Step 3: Cross multiply
    140,838.79x = 211,116.03 × 88,285.18
  4. Step 4: Simplify right side
    140,838.79x = 18,638,416,709.44
  5. Step 5: Solve for x
    x = 18,638,416,709.44/140,838.79
  6. Step 6: Final answer
    x = 132,338.66

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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.