Home / 158,740.92-219,065.22-87,127.62

Finding the Fourth Proportional to 158,740.92, 219,065.22 and 87,127.62

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Solution

The fourth proportional to 158,740.92, 219,065.22 and 87,127.62 is: 120,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,740.92 : 219,065.22 = 87,127.62 : x
  2. Step 2: Convert to fraction form
    158,740.92/219,065.22 = 87,127.62/x
  3. Step 3: Cross multiply
    158,740.92x = 219,065.22 × 87,127.62
  4. Step 4: Simplify right side
    158,740.92x = 19,086,631,243.38
  5. Step 5: Solve for x
    x = 19,086,631,243.38/158,740.92
  6. Step 6: Final answer
    x = 120,237.63

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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.