Home / 148,400.13-204,783.48-87,976.56

Finding the Fourth Proportional to 148,400.13, 204,783.48 and 87,976.56

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Solution

The fourth proportional to 148,400.13, 204,783.48 and 87,976.56 is: 121,402.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,400.13 : 204,783.48 = 87,976.56 : x
  2. Step 2: Convert to fraction form
    148,400.13/204,783.48 = 87,976.56/x
  3. Step 3: Cross multiply
    148,400.13x = 204,783.48 × 87,976.56
  4. Step 4: Simplify right side
    148,400.13x = 18,016,146,115.23
  5. Step 5: Solve for x
    x = 18,016,146,115.23/148,400.13
  6. Step 6: Final answer
    x = 121,402.50

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1.5x scale

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.