Home / 154,287.24-212,830.65-89,749.22

Finding the Fourth Proportional to 154,287.24, 212,830.65 and 89,749.22

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Solution

The fourth proportional to 154,287.24, 212,830.65 and 89,749.22 is: 123,804.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,287.24 : 212,830.65 = 89,749.22 : x
  2. Step 2: Convert to fraction form
    154,287.24/212,830.65 = 89,749.22/x
  3. Step 3: Cross multiply
    154,287.24x = 212,830.65 × 89,749.22
  4. Step 4: Simplify right side
    154,287.24x = 19,101,383,765.44
  5. Step 5: Solve for x
    x = 19,101,383,765.44/154,287.24
  6. Step 6: Final answer
    x = 123,804.04

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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.