Home / 74,190.16-111,187.92-64,288.72

Finding the Fourth Proportional to 74,190.16, 111,187.92 and 64,288.72

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Solution

The fourth proportional to 74,190.16, 111,187.92 and 64,288.72 is: 96,348.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,190.16 : 111,187.92 = 64,288.72 : x
  2. Step 2: Convert to fraction form
    74,190.16/111,187.92 = 64,288.72/x
  3. Step 3: Cross multiply
    74,190.16x = 111,187.92 × 64,288.72
  4. Step 4: Simplify right side
    74,190.16x = 7,148,129,056.26
  5. Step 5: Solve for x
    x = 7,148,129,056.26/74,190.16
  6. Step 6: Final answer
    x = 96,348.75

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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.