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Finding the Fourth Proportional to 115,027.76, 158,738.19 and 64,726.76

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Solution

The fourth proportional to 115,027.76, 158,738.19 and 64,726.76 is: 89,322.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,027.76 : 158,738.19 = 64,726.76 : x
  2. Step 2: Convert to fraction form
    115,027.76/158,738.19 = 64,726.76/x
  3. Step 3: Cross multiply
    115,027.76x = 158,738.19 × 64,726.76
  4. Step 4: Simplify right side
    115,027.76x = 10,274,608,726.96
  5. Step 5: Solve for x
    x = 10,274,608,726.96/115,027.76
  6. Step 6: Final answer
    x = 89,322.86

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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.