Home / 102,783.13-141,864.42-66,910.66

Finding the Fourth Proportional to 102,783.13, 141,864.42 and 66,910.66

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Solution

The fourth proportional to 102,783.13, 141,864.42 and 66,910.66 is: 92,352.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,783.13 : 141,864.42 = 66,910.66 : x
  2. Step 2: Convert to fraction form
    102,783.13/141,864.42 = 66,910.66/x
  3. Step 3: Cross multiply
    102,783.13x = 141,864.42 × 66,910.66
  4. Step 4: Simplify right side
    102,783.13x = 9,492,241,972.72
  5. Step 5: Solve for x
    x = 9,492,241,972.72/102,783.13
  6. Step 6: Final answer
    x = 92,352.14

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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.