Home / 150,391.13-207,539.75-89,964.32

Finding the Fourth Proportional to 150,391.13, 207,539.75 and 89,964.32

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Solution

The fourth proportional to 150,391.13, 207,539.75 and 89,964.32 is: 124,150.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,391.13 : 207,539.75 = 89,964.32 : x
  2. Step 2: Convert to fraction form
    150,391.13/207,539.75 = 89,964.32/x
  3. Step 3: Cross multiply
    150,391.13x = 207,539.75 × 89,964.32
  4. Step 4: Simplify right side
    150,391.13x = 18,671,171,668.93
  5. Step 5: Solve for x
    x = 18,671,171,668.93/150,391.13
  6. Step 6: Final answer
    x = 124,150.75

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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.