Home / 189,631.55-284,449.14-77,289

Finding the Fourth Proportional to 189,631.55, 284,449.14 and 77,289

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Solution

The fourth proportional to 189,631.55, 284,449.14 and 77,289 is: 115,934.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,631.55 : 284,449.14 = 77,289 : x
  2. Step 2: Convert to fraction form
    189,631.55/284,449.14 = 77,289/x
  3. Step 3: Cross multiply
    189,631.55x = 284,449.14 × 77,289
  4. Step 4: Simplify right side
    189,631.55x = 21,984,789,581.46
  5. Step 5: Solve for x
    x = 21,984,789,581.46/189,631.55
  6. Step 6: Final answer
    x = 115,934.24

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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.