Home / 140,043.81-209,929.02-55,778.70

Finding the Fourth Proportional to 140,043.81, 209,929.02 and 55,778.70

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Solution

The fourth proportional to 140,043.81, 209,929.02 and 55,778.70 is: 83,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,043.81 : 209,929.02 = 55,778.70 : x
  2. Step 2: Convert to fraction form
    140,043.81/209,929.02 = 55,778.70/x
  3. Step 3: Cross multiply
    140,043.81x = 209,929.02 × 55,778.70
  4. Step 4: Simplify right side
    140,043.81x = 11,709,567,827.87
  5. Step 5: Solve for x
    x = 11,709,567,827.87/140,043.81
  6. Step 6: Final answer
    x = 83,613.61

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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.