Home / 115,611.96-159,555.99-67,864.29

Finding the Fourth Proportional to 115,611.96, 159,555.99 and 67,864.29

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Solution

The fourth proportional to 115,611.96, 159,555.99 and 67,864.29 is: 93,659.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,611.96 : 159,555.99 = 67,864.29 : x
  2. Step 2: Convert to fraction form
    115,611.96/159,555.99 = 67,864.29/x
  3. Step 3: Cross multiply
    115,611.96x = 159,555.99 × 67,864.29
  4. Step 4: Simplify right side
    115,611.96x = 10,828,153,976.60
  5. Step 5: Solve for x
    x = 10,828,153,976.60/115,611.96
  6. Step 6: Final answer
    x = 93,659.46

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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.