Home / 115,515.54-159,403.89-67,113.18

Finding the Fourth Proportional to 115,515.54, 159,403.89 and 67,113.18

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Solution

The fourth proportional to 115,515.54, 159,403.89 and 67,113.18 is: 92,611.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,515.54 : 159,403.89 = 67,113.18 : x
  2. Step 2: Convert to fraction form
    115,515.54/159,403.89 = 67,113.18/x
  3. Step 3: Cross multiply
    115,515.54x = 159,403.89 × 67,113.18
  4. Step 4: Simplify right side
    115,515.54x = 10,698,101,962.27
  5. Step 5: Solve for x
    x = 10,698,101,962.27/115,515.54
  6. Step 6: Final answer
    x = 92,611.80

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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.