Home / 115,935.78-160,001.50-64,947.68

Finding the Fourth Proportional to 115,935.78, 160,001.50 and 64,947.68

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Solution

The fourth proportional to 115,935.78, 160,001.50 and 64,947.68 is: 89,633.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,935.78 : 160,001.50 = 64,947.68 : x
  2. Step 2: Convert to fraction form
    115,935.78/160,001.50 = 64,947.68/x
  3. Step 3: Cross multiply
    115,935.78x = 160,001.50 × 64,947.68
  4. Step 4: Simplify right side
    115,935.78x = 10,391,726,221.52
  5. Step 5: Solve for x
    x = 10,391,726,221.52/115,935.78
  6. Step 6: Final answer
    x = 89,633.47

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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.