Home / 115,507.08-159,401.10-67,761.24

Finding the Fourth Proportional to 115,507.08, 159,401.10 and 67,761.24

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Solution

The fourth proportional to 115,507.08, 159,401.10 and 67,761.24 is: 93,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,507.08 : 159,401.10 = 67,761.24 : x
  2. Step 2: Convert to fraction form
    115,507.08/159,401.10 = 67,761.24/x
  3. Step 3: Cross multiply
    115,507.08x = 159,401.10 × 67,761.24
  4. Step 4: Simplify right side
    115,507.08x = 10,801,216,193.36
  5. Step 5: Solve for x
    x = 10,801,216,193.36/115,507.08
  6. Step 6: Final answer
    x = 93,511.29

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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.