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Finding the Fourth Proportional to 83,435.70, 124,409.29 and 74,162.82

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Solution

The fourth proportional to 83,435.70, 124,409.29 and 74,162.82 is: 110,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,435.70 : 124,409.29 = 74,162.82 : x
  2. Step 2: Convert to fraction form
    83,435.70/124,409.29 = 74,162.82/x
  3. Step 3: Cross multiply
    83,435.70x = 124,409.29 × 74,162.82
  4. Step 4: Simplify right side
    83,435.70x = 9,226,543,780.60
  5. Step 5: Solve for x
    x = 9,226,543,780.60/83,435.70
  6. Step 6: Final answer
    x = 110,582.69

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.