Home / 131,979.50-198,002.25-38,485.25

Finding the Fourth Proportional to 131,979.50, 198,002.25 and 38,485.25

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Solution

The fourth proportional to 131,979.50, 198,002.25 and 38,485.25 is: 57,737.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,979.50 : 198,002.25 = 38,485.25 : x
  2. Step 2: Convert to fraction form
    131,979.50/198,002.25 = 38,485.25/x
  3. Step 3: Cross multiply
    131,979.50x = 198,002.25 × 38,485.25
  4. Step 4: Simplify right side
    131,979.50x = 7,620,166,091.81
  5. Step 5: Solve for x
    x = 7,620,166,091.81/131,979.50
  6. Step 6: Final answer
    x = 57,737.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.