Home / 158,828.67-219,157.74-90,834.75

Finding the Fourth Proportional to 158,828.67, 219,157.74 and 90,834.75

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Solution

The fourth proportional to 158,828.67, 219,157.74 and 90,834.75 is: 125,337.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,828.67 : 219,157.74 = 90,834.75 : x
  2. Step 2: Convert to fraction form
    158,828.67/219,157.74 = 90,834.75/x
  3. Step 3: Cross multiply
    158,828.67x = 219,157.74 × 90,834.75
  4. Step 4: Simplify right side
    158,828.67x = 19,907,138,523.47
  5. Step 5: Solve for x
    x = 19,907,138,523.47/158,828.67
  6. Step 6: Final answer
    x = 125,337.19

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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.