Home / 115,612.96-159,557.37-67,865.29

Finding the Fourth Proportional to 115,612.96, 159,557.37 and 67,865.29

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Solution

The fourth proportional to 115,612.96, 159,557.37 and 67,865.29 is: 93,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,612.96 : 159,557.37 = 67,865.29 : x
  2. Step 2: Convert to fraction form
    115,612.96/159,557.37 = 67,865.29/x
  3. Step 3: Cross multiply
    115,612.96x = 159,557.37 × 67,865.29
  4. Step 4: Simplify right side
    115,612.96x = 10,828,407,186.69
  5. Step 5: Solve for x
    x = 10,828,407,186.69/115,612.96
  6. Step 6: Final answer
    x = 93,660.84

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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.