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Finding the Fourth Proportional to 133,067.88, 183,570 and 90,062.40

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Solution

The fourth proportional to 133,067.88, 183,570 and 90,062.40 is: 124,243.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,067.88 : 183,570 = 90,062.40 : x
  2. Step 2: Convert to fraction form
    133,067.88/183,570 = 90,062.40/x
  3. Step 3: Cross multiply
    133,067.88x = 183,570 × 90,062.40
  4. Step 4: Simplify right side
    133,067.88x = 16,532,754,768.00
  5. Step 5: Solve for x
    x = 16,532,754,768.00/133,067.88
  6. Step 6: Final answer
    x = 124,243.02

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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.