Home / 189,926.20-284,784.12-77,685.23

Finding the Fourth Proportional to 189,926.20, 284,784.12 and 77,685.23

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Solution

The fourth proportional to 189,926.20, 284,784.12 and 77,685.23 is: 116,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,926.20 : 284,784.12 = 77,685.23 : x
  2. Step 2: Convert to fraction form
    189,926.20/284,784.12 = 77,685.23/x
  3. Step 3: Cross multiply
    189,926.20x = 284,784.12 × 77,685.23
  4. Step 4: Simplify right side
    189,926.20x = 22,123,519,862.55
  5. Step 5: Solve for x
    x = 22,123,519,862.55/189,926.20
  6. Step 6: Final answer
    x = 116,484.82

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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.