Home / 115,545.72-159,447.36-64,548.36

Finding the Fourth Proportional to 115,545.72, 159,447.36 and 64,548.36

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Solution

The fourth proportional to 115,545.72, 159,447.36 and 64,548.36 is: 89,073.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,545.72 : 159,447.36 = 64,548.36 : x
  2. Step 2: Convert to fraction form
    115,545.72/159,447.36 = 64,548.36/x
  3. Step 3: Cross multiply
    115,545.72x = 159,447.36 × 64,548.36
  4. Step 4: Simplify right side
    115,545.72x = 10,292,065,594.33
  5. Step 5: Solve for x
    x = 10,292,065,594.33/115,545.72
  6. Step 6: Final answer
    x = 89,073.53

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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.