Home / 144,699.60-199,635.46-90,988.70

Finding the Fourth Proportional to 144,699.60, 199,635.46 and 90,988.70

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Solution

The fourth proportional to 144,699.60, 199,635.46 and 90,988.70 is: 125,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,699.60 : 199,635.46 = 90,988.70 : x
  2. Step 2: Convert to fraction form
    144,699.60/199,635.46 = 90,988.70/x
  3. Step 3: Cross multiply
    144,699.60x = 199,635.46 × 90,988.70
  4. Step 4: Simplify right side
    144,699.60x = 18,164,570,979.30
  5. Step 5: Solve for x
    x = 18,164,570,979.30/144,699.60
  6. Step 6: Final answer
    x = 125,532.97

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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.