Home / 189,982.11-284,881.13-77,617.70

Finding the Fourth Proportional to 189,982.11, 284,881.13 and 77,617.70

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Solution

The fourth proportional to 189,982.11, 284,881.13 and 77,617.70 is: 116,388.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,982.11 : 284,881.13 = 77,617.70 : x
  2. Step 2: Convert to fraction form
    189,982.11/284,881.13 = 77,617.70/x
  3. Step 3: Cross multiply
    189,982.11x = 284,881.13 × 77,617.70
  4. Step 4: Simplify right side
    189,982.11x = 22,111,818,084.00
  5. Step 5: Solve for x
    x = 22,111,818,084.00/189,982.11
  6. Step 6: Final answer
    x = 116,388.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.