Home / 189,965.52-284,842.95-77,724.48

Finding the Fourth Proportional to 189,965.52, 284,842.95 and 77,724.48

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Solution

The fourth proportional to 189,965.52, 284,842.95 and 77,724.48 is: 116,543.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,965.52 : 284,842.95 = 77,724.48 : x
  2. Step 2: Convert to fraction form
    189,965.52/284,842.95 = 77,724.48/x
  3. Step 3: Cross multiply
    189,965.52x = 284,842.95 × 77,724.48
  4. Step 4: Simplify right side
    189,965.52x = 22,139,270,170.42
  5. Step 5: Solve for x
    x = 22,139,270,170.42/189,965.52
  6. Step 6: Final answer
    x = 116,543.62

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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.