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Finding the Fourth Proportional to 115,060.50, 158,785.92 and 64,759.50

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Solution

The fourth proportional to 115,060.50, 158,785.92 and 64,759.50 is: 89,369.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,060.50 : 158,785.92 = 64,759.50 : x
  2. Step 2: Convert to fraction form
    115,060.50/158,785.92 = 64,759.50/x
  3. Step 3: Cross multiply
    115,060.50x = 158,785.92 × 64,759.50
  4. Step 4: Simplify right side
    115,060.50x = 10,282,896,786.24
  5. Step 5: Solve for x
    x = 10,282,896,786.24/115,060.50
  6. Step 6: Final answer
    x = 89,369.48

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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.