Home / 150,146.07-207,168.71-89,707.65

Finding the Fourth Proportional to 150,146.07, 207,168.71 and 89,707.65

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Solution

The fourth proportional to 150,146.07, 207,168.71 and 89,707.65 is: 123,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,146.07 : 207,168.71 = 89,707.65 : x
  2. Step 2: Convert to fraction form
    150,146.07/207,168.71 = 89,707.65/x
  3. Step 3: Cross multiply
    150,146.07x = 207,168.71 × 89,707.65
  4. Step 4: Simplify right side
    150,146.07x = 18,584,617,679.09
  5. Step 5: Solve for x
    x = 18,584,617,679.09/150,146.07
  6. Step 6: Final answer
    x = 123,776.92

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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.