Home / 144,289.60-199,180.96-87,719.04

Finding the Fourth Proportional to 144,289.60, 199,180.96 and 87,719.04

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Solution

The fourth proportional to 144,289.60, 199,180.96 and 87,719.04 is: 121,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,289.60 : 199,180.96 = 87,719.04 : x
  2. Step 2: Convert to fraction form
    144,289.60/199,180.96 = 87,719.04/x
  3. Step 3: Cross multiply
    144,289.60x = 199,180.96 × 87,719.04
  4. Step 4: Simplify right side
    144,289.60x = 17,471,962,597.48
  5. Step 5: Solve for x
    x = 17,471,962,597.48/144,289.60
  6. Step 6: Final answer
    x = 121,089.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.