Home / 189,922.92-284,981.58-77,686.08

Finding the Fourth Proportional to 189,922.92, 284,981.58 and 77,686.08

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Solution

The fourth proportional to 189,922.92, 284,981.58 and 77,686.08 is: 116,568.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,922.92 : 284,981.58 = 77,686.08 : x
  2. Step 2: Convert to fraction form
    189,922.92/284,981.58 = 77,686.08/x
  3. Step 3: Cross multiply
    189,922.92x = 284,981.58 × 77,686.08
  4. Step 4: Simplify right side
    189,922.92x = 22,139,101,822.41
  5. Step 5: Solve for x
    x = 22,139,101,822.41/189,922.92
  6. Step 6: Final answer
    x = 116,568.88

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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.