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Finding the Fourth Proportional to 140,801.68, 211,117.36 and 55,310.20

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Solution

The fourth proportional to 140,801.68, 211,117.36 and 55,310.20 is: 82,931.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,801.68 : 211,117.36 = 55,310.20 : x
  2. Step 2: Convert to fraction form
    140,801.68/211,117.36 = 55,310.20/x
  3. Step 3: Cross multiply
    140,801.68x = 211,117.36 × 55,310.20
  4. Step 4: Simplify right side
    140,801.68x = 11,676,943,405.07
  5. Step 5: Solve for x
    x = 11,676,943,405.07/140,801.68
  6. Step 6: Final answer
    x = 82,931.85

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1.5x scale

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.