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Finding the Fourth Proportional to 148,950, 205,726.50 and 98,561.52

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Solution

The fourth proportional to 148,950, 205,726.50 and 98,561.52 is: 136,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,950 : 205,726.50 = 98,561.52 : x
  2. Step 2: Convert to fraction form
    148,950/205,726.50 = 98,561.52/x
  3. Step 3: Cross multiply
    148,950x = 205,726.50 × 98,561.52
  4. Step 4: Simplify right side
    148,950x = 20,276,716,544.28
  5. Step 5: Solve for x
    x = 20,276,716,544.28/148,950
  6. Step 6: Final answer
    x = 136,131.03

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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.