Home / 150,583.80-207,812.16-90,142.75

Finding the Fourth Proportional to 150,583.80, 207,812.16 and 90,142.75

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Solution

The fourth proportional to 150,583.80, 207,812.16 and 90,142.75 is: 124,400.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,583.80 : 207,812.16 = 90,142.75 : x
  2. Step 2: Convert to fraction form
    150,583.80/207,812.16 = 90,142.75/x
  3. Step 3: Cross multiply
    150,583.80x = 207,812.16 × 90,142.75
  4. Step 4: Simplify right side
    150,583.80x = 18,732,759,066.31
  5. Step 5: Solve for x
    x = 18,732,759,066.31/150,583.80
  6. Step 6: Final answer
    x = 124,400.89

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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.