Home / 115,939.52-159,983.04-64,944.96

Finding the Fourth Proportional to 115,939.52, 159,983.04 and 64,944.96

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Solution

The fourth proportional to 115,939.52, 159,983.04 and 64,944.96 is: 89,616.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,939.52 : 159,983.04 = 64,944.96 : x
  2. Step 2: Convert to fraction form
    115,939.52/159,983.04 = 64,944.96/x
  3. Step 3: Cross multiply
    115,939.52x = 159,983.04 × 64,944.96
  4. Step 4: Simplify right side
    115,939.52x = 10,390,092,133.48
  5. Step 5: Solve for x
    x = 10,390,092,133.48/115,939.52
  6. Step 6: Final answer
    x = 89,616.48

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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.