Home / 189,475.07-283,965.78-77,023.92

Finding the Fourth Proportional to 189,475.07, 283,965.78 and 77,023.92

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Solution

The fourth proportional to 189,475.07, 283,965.78 and 77,023.92 is: 115,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,475.07 : 283,965.78 = 77,023.92 : x
  2. Step 2: Convert to fraction form
    189,475.07/283,965.78 = 77,023.92/x
  3. Step 3: Cross multiply
    189,475.07x = 283,965.78 × 77,023.92
  4. Step 4: Simplify right side
    189,475.07x = 21,872,158,875.17
  5. Step 5: Solve for x
    x = 21,872,158,875.17/189,475.07
  6. Step 6: Final answer
    x = 115,435.55

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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.