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Finding the Fourth Proportional to 158,536.80, 218,782.58 and 90,562.77

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Solution

The fourth proportional to 158,536.80, 218,782.58 and 90,562.77 is: 124,977.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,536.80 : 218,782.58 = 90,562.77 : x
  2. Step 2: Convert to fraction form
    158,536.80/218,782.58 = 90,562.77/x
  3. Step 3: Cross multiply
    158,536.80x = 218,782.58 × 90,562.77
  4. Step 4: Simplify right side
    158,536.80x = 19,813,556,019.73
  5. Step 5: Solve for x
    x = 19,813,556,019.73/158,536.80
  6. Step 6: Final answer
    x = 124,977.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.