Home / 158,934.01-219,329.02-87,318.65

Finding the Fourth Proportional to 158,934.01, 219,329.02 and 87,318.65

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Solution

The fourth proportional to 158,934.01, 219,329.02 and 87,318.65 is: 120,499.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,934.01 : 219,329.02 = 87,318.65 : x
  2. Step 2: Convert to fraction form
    158,934.01/219,329.02 = 87,318.65/x
  3. Step 3: Cross multiply
    158,934.01x = 219,329.02 × 87,318.65
  4. Step 4: Simplify right side
    158,934.01x = 19,151,512,835.58
  5. Step 5: Solve for x
    x = 19,151,512,835.58/158,934.01
  6. Step 6: Final answer
    x = 120,499.78

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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.