Home / 158,932.35-219,338.94-90,970.65

Finding the Fourth Proportional to 158,932.35, 219,338.94 and 90,970.65

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Solution

The fourth proportional to 158,932.35, 219,338.94 and 90,970.65 is: 125,546.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,932.35 : 219,338.94 = 90,970.65 : x
  2. Step 2: Convert to fraction form
    158,932.35/219,338.94 = 90,970.65/x
  3. Step 3: Cross multiply
    158,932.35x = 219,338.94 × 90,970.65
  4. Step 4: Simplify right side
    158,932.35x = 19,953,406,283.25
  5. Step 5: Solve for x
    x = 19,953,406,283.25/158,932.35
  6. Step 6: Final answer
    x = 125,546.53

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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.