Home / 158,052.75-218,112.78-86,432.82

Finding the Fourth Proportional to 158,052.75, 218,112.78 and 86,432.82

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Solution

The fourth proportional to 158,052.75, 218,112.78 and 86,432.82 is: 119,277.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,052.75 : 218,112.78 = 86,432.82 : x
  2. Step 2: Convert to fraction form
    158,052.75/218,112.78 = 86,432.82/x
  3. Step 3: Cross multiply
    158,052.75x = 218,112.78 × 86,432.82
  4. Step 4: Simplify right side
    158,052.75x = 18,852,102,653.44
  5. Step 5: Solve for x
    x = 18,852,102,653.44/158,052.75
  6. Step 6: Final answer
    x = 119,277.28

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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.