Home / 177,787.20-266,719.20-53,140.80

Finding the Fourth Proportional to 177,787.20, 266,719.20 and 53,140.80

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Solution

The fourth proportional to 177,787.20, 266,719.20 and 53,140.80 is: 79,722.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,787.20 : 266,719.20 = 53,140.80 : x
  2. Step 2: Convert to fraction form
    177,787.20/266,719.20 = 53,140.80/x
  3. Step 3: Cross multiply
    177,787.20x = 266,719.20 × 53,140.80
  4. Step 4: Simplify right side
    177,787.20x = 14,173,671,663.36
  5. Step 5: Solve for x
    x = 14,173,671,663.36/177,787.20
  6. Step 6: Final answer
    x = 79,722.68

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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.