Home / 115,416.09-159,282.18-64,438.83

Finding the Fourth Proportional to 115,416.09, 159,282.18 and 64,438.83

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Solution

The fourth proportional to 115,416.09, 159,282.18 and 64,438.83 is: 88,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,416.09 : 159,282.18 = 64,438.83 : x
  2. Step 2: Convert to fraction form
    115,416.09/159,282.18 = 64,438.83/x
  3. Step 3: Cross multiply
    115,416.09x = 159,282.18 × 64,438.83
  4. Step 4: Simplify right side
    115,416.09x = 10,263,957,319.05
  5. Step 5: Solve for x
    x = 10,263,957,319.05/115,416.09
  6. Step 6: Final answer
    x = 88,930.04

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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.