Home / 148,403.56-204,760.18-87,988.36

Finding the Fourth Proportional to 148,403.56, 204,760.18 and 87,988.36

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Solution

The fourth proportional to 148,403.56, 204,760.18 and 87,988.36 is: 121,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,403.56 : 204,760.18 = 87,988.36 : x
  2. Step 2: Convert to fraction form
    148,403.56/204,760.18 = 87,988.36/x
  3. Step 3: Cross multiply
    148,403.56x = 204,760.18 × 87,988.36
  4. Step 4: Simplify right side
    148,403.56x = 18,016,512,431.50
  5. Step 5: Solve for x
    x = 18,016,512,431.50/148,403.56
  6. Step 6: Final answer
    x = 121,402.16

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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.