Home / 145,391.20-218,086.08-38,774.92

Finding the Fourth Proportional to 145,391.20, 218,086.08 and 38,774.92

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Solution

The fourth proportional to 145,391.20, 218,086.08 and 38,774.92 is: 58,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,391.20 : 218,086.08 = 38,774.92 : x
  2. Step 2: Convert to fraction form
    145,391.20/218,086.08 = 38,774.92/x
  3. Step 3: Cross multiply
    145,391.20x = 218,086.08 × 38,774.92
  4. Step 4: Simplify right side
    145,391.20x = 8,456,270,305.11
  5. Step 5: Solve for x
    x = 8,456,270,305.11/145,391.20
  6. Step 6: Final answer
    x = 58,162.19

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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.