Home / 158,734.86-219,057.69-87,119.46

Finding the Fourth Proportional to 158,734.86, 219,057.69 and 87,119.46

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Solution

The fourth proportional to 158,734.86, 219,057.69 and 87,119.46 is: 120,226.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,734.86 : 219,057.69 = 87,119.46 : x
  2. Step 2: Convert to fraction form
    158,734.86/219,057.69 = 87,119.46/x
  3. Step 3: Cross multiply
    158,734.86x = 219,057.69 × 87,119.46
  4. Step 4: Simplify right side
    158,734.86x = 19,084,187,661.65
  5. Step 5: Solve for x
    x = 19,084,187,661.65/158,734.86
  6. Step 6: Final answer
    x = 120,226.82

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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.