Home / 115,209.96-158,998.98-64,239.29

Finding the Fourth Proportional to 115,209.96, 158,998.98 and 64,239.29

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Solution

The fourth proportional to 115,209.96, 158,998.98 and 64,239.29 is: 88,655.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,209.96 : 158,998.98 = 64,239.29 : x
  2. Step 2: Convert to fraction form
    115,209.96/158,998.98 = 64,239.29/x
  3. Step 3: Cross multiply
    115,209.96x = 158,998.98 × 64,239.29
  4. Step 4: Simplify right side
    115,209.96x = 10,213,981,585.92
  5. Step 5: Solve for x
    x = 10,213,981,585.92/115,209.96
  6. Step 6: Final answer
    x = 88,655.37

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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.