Home / 148,291.38-204,634.02-87,867.60

Finding the Fourth Proportional to 148,291.38, 204,634.02 and 87,867.60

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Solution

The fourth proportional to 148,291.38, 204,634.02 and 87,867.60 is: 121,252.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,291.38 : 204,634.02 = 87,867.60 : x
  2. Step 2: Convert to fraction form
    148,291.38/204,634.02 = 87,867.60/x
  3. Step 3: Cross multiply
    148,291.38x = 204,634.02 × 87,867.60
  4. Step 4: Simplify right side
    148,291.38x = 17,980,700,215.75
  5. Step 5: Solve for x
    x = 17,980,700,215.75/148,291.38
  6. Step 6: Final answer
    x = 121,252.50

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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.