Home / 115,748.66-159,739.33-64,758.34

Finding the Fourth Proportional to 115,748.66, 159,739.33 and 64,758.34

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Solution

The fourth proportional to 115,748.66, 159,739.33 and 64,758.34 is: 89,369.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,748.66 : 159,739.33 = 64,758.34 : x
  2. Step 2: Convert to fraction form
    115,748.66/159,739.33 = 64,758.34/x
  3. Step 3: Cross multiply
    115,748.66x = 159,739.33 × 64,758.34
  4. Step 4: Simplify right side
    115,748.66x = 10,344,453,422.91
  5. Step 5: Solve for x
    x = 10,344,453,422.91/115,748.66
  6. Step 6: Final answer
    x = 89,369.96

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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.