Home / 115,732.32-159,644.16-67,976.88

Finding the Fourth Proportional to 115,732.32, 159,644.16 and 67,976.88

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Solution

The fourth proportional to 115,732.32, 159,644.16 and 67,976.88 is: 93,769.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,732.32 : 159,644.16 = 67,976.88 : x
  2. Step 2: Convert to fraction form
    115,732.32/159,644.16 = 67,976.88/x
  3. Step 3: Cross multiply
    115,732.32x = 159,644.16 × 67,976.88
  4. Step 4: Simplify right side
    115,732.32x = 10,852,111,907.02
  5. Step 5: Solve for x
    x = 10,852,111,907.02/115,732.32
  6. Step 6: Final answer
    x = 93,769.07

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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.