Home / 158,728.26-219,050.31-87,112.23

Finding the Fourth Proportional to 158,728.26, 219,050.31 and 87,112.23

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Solution

The fourth proportional to 158,728.26, 219,050.31 and 87,112.23 is: 120,217.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,728.26 : 219,050.31 = 87,112.23 : x
  2. Step 2: Convert to fraction form
    158,728.26/219,050.31 = 87,112.23/x
  3. Step 3: Cross multiply
    158,728.26x = 219,050.31 × 87,112.23
  4. Step 4: Simplify right side
    158,728.26x = 19,081,960,986.29
  5. Step 5: Solve for x
    x = 19,081,960,986.29/158,728.26
  6. Step 6: Final answer
    x = 120,217.79

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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.