Home / 115,976.90-160,045.40-68,233.32

Finding the Fourth Proportional to 115,976.90, 160,045.40 and 68,233.32

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Solution

The fourth proportional to 115,976.90, 160,045.40 and 68,233.32 is: 94,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,976.90 : 160,045.40 = 68,233.32 : x
  2. Step 2: Convert to fraction form
    115,976.90/160,045.40 = 68,233.32/x
  3. Step 3: Cross multiply
    115,976.90x = 160,045.40 × 68,233.32
  4. Step 4: Simplify right side
    115,976.90x = 10,920,428,021.92
  5. Step 5: Solve for x
    x = 10,920,428,021.92/115,976.90
  6. Step 6: Final answer
    x = 94,160.38

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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.