Home / 115,316.96-159,144.75-64,337.38

Finding the Fourth Proportional to 115,316.96, 159,144.75 and 64,337.38

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Solution

The fourth proportional to 115,316.96, 159,144.75 and 64,337.38 is: 88,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,316.96 : 159,144.75 = 64,337.38 : x
  2. Step 2: Convert to fraction form
    115,316.96/159,144.75 = 64,337.38/x
  3. Step 3: Cross multiply
    115,316.96x = 159,144.75 × 64,337.38
  4. Step 4: Simplify right side
    115,316.96x = 10,238,955,857.89
  5. Step 5: Solve for x
    x = 10,238,955,857.89/115,316.96
  6. Step 6: Final answer
    x = 88,789.68

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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.