Home / 115,747.86-159,735.06-64,758.90

Finding the Fourth Proportional to 115,747.86, 159,735.06 and 64,758.90

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Solution

The fourth proportional to 115,747.86, 159,735.06 and 64,758.90 is: 89,368.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,747.86 : 159,735.06 = 64,758.90 : x
  2. Step 2: Convert to fraction form
    115,747.86/159,735.06 = 64,758.90/x
  3. Step 3: Cross multiply
    115,747.86x = 159,735.06 × 64,758.90
  4. Step 4: Simplify right side
    115,747.86x = 10,344,266,777.03
  5. Step 5: Solve for x
    x = 10,344,266,777.03/115,747.86
  6. Step 6: Final answer
    x = 89,368.97

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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.