Home / 115,541.88-159,420.45-67,115.04

Finding the Fourth Proportional to 115,541.88, 159,420.45 and 67,115.04

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Solution

The fourth proportional to 115,541.88, 159,420.45 and 67,115.04 is: 92,602.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,541.88 : 159,420.45 = 67,115.04 : x
  2. Step 2: Convert to fraction form
    115,541.88/159,420.45 = 67,115.04/x
  3. Step 3: Cross multiply
    115,541.88x = 159,420.45 × 67,115.04
  4. Step 4: Simplify right side
    115,541.88x = 10,699,509,878.57
  5. Step 5: Solve for x
    x = 10,699,509,878.57/115,541.88
  6. Step 6: Final answer
    x = 92,602.87

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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.