Home / 102,639.67-141,634.66-57,314.11

Finding the Fourth Proportional to 102,639.67, 141,634.66 and 57,314.11

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Solution

The fourth proportional to 102,639.67, 141,634.66 and 57,314.11 is: 79,088.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,639.67 : 141,634.66 = 57,314.11 : x
  2. Step 2: Convert to fraction form
    102,639.67/141,634.66 = 57,314.11/x
  3. Step 3: Cross multiply
    102,639.67x = 141,634.66 × 57,314.11
  4. Step 4: Simplify right side
    102,639.67x = 8,117,664,483.05
  5. Step 5: Solve for x
    x = 8,117,664,483.05/102,639.67
  6. Step 6: Final answer
    x = 79,088.96

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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.