Home / 115,191.19-158,964.58-64,207.16

Finding the Fourth Proportional to 115,191.19, 158,964.58 and 64,207.16

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Solution

The fourth proportional to 115,191.19, 158,964.58 and 64,207.16 is: 88,606.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,191.19 : 158,964.58 = 64,207.16 : x
  2. Step 2: Convert to fraction form
    115,191.19/158,964.58 = 64,207.16/x
  3. Step 3: Cross multiply
    115,191.19x = 158,964.58 × 64,207.16
  4. Step 4: Simplify right side
    115,191.19x = 10,206,663,837.44
  5. Step 5: Solve for x
    x = 10,206,663,837.44/115,191.19
  6. Step 6: Final answer
    x = 88,606.29

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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.