Home / 115,521.08-159,420.42-67,775.24

Finding the Fourth Proportional to 115,521.08, 159,420.42 and 67,775.24

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Solution

The fourth proportional to 115,521.08, 159,420.42 and 67,775.24 is: 93,530.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,521.08 : 159,420.42 = 67,775.24 : x
  2. Step 2: Convert to fraction form
    115,521.08/159,420.42 = 67,775.24/x
  3. Step 3: Cross multiply
    115,521.08x = 159,420.42 × 67,775.24
  4. Step 4: Simplify right side
    115,521.08x = 10,804,757,226.40
  5. Step 5: Solve for x
    x = 10,804,757,226.40/115,521.08
  6. Step 6: Final answer
    x = 93,530.61

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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.