Home / 158,669.10-218,959.52-87,048.50

Finding the Fourth Proportional to 158,669.10, 218,959.52 and 87,048.50

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Solution

The fourth proportional to 158,669.10, 218,959.52 and 87,048.50 is: 120,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,669.10 : 218,959.52 = 87,048.50 : x
  2. Step 2: Convert to fraction form
    158,669.10/218,959.52 = 87,048.50/x
  3. Step 3: Cross multiply
    158,669.10x = 218,959.52 × 87,048.50
  4. Step 4: Simplify right side
    158,669.10x = 19,060,096,246.68
  5. Step 5: Solve for x
    x = 19,060,096,246.68/158,669.10
  6. Step 6: Final answer
    x = 120,124.81

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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.