Home / 115,438.50-159,331.65-67,707.23

Finding the Fourth Proportional to 115,438.50, 159,331.65 and 67,707.23

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Solution

The fourth proportional to 115,438.50, 159,331.65 and 67,707.23 is: 93,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,438.50 : 159,331.65 = 67,707.23 : x
  2. Step 2: Convert to fraction form
    115,438.50/159,331.65 = 67,707.23/x
  3. Step 3: Cross multiply
    115,438.50x = 159,331.65 × 67,707.23
  4. Step 4: Simplify right side
    115,438.50x = 10,787,903,876.17
  5. Step 5: Solve for x
    x = 10,787,903,876.17/115,438.50
  6. Step 6: Final answer
    x = 93,451.53

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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.