Home / 159,473.06-239,357.81-80,643.86

Finding the Fourth Proportional to 159,473.06, 239,357.81 and 80,643.86

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Solution

The fourth proportional to 159,473.06, 239,357.81 and 80,643.86 is: 121,040.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,473.06 : 239,357.81 = 80,643.86 : x
  2. Step 2: Convert to fraction form
    159,473.06/239,357.81 = 80,643.86/x
  3. Step 3: Cross multiply
    159,473.06x = 239,357.81 × 80,643.86
  4. Step 4: Simplify right side
    159,473.06x = 19,302,736,724.37
  5. Step 5: Solve for x
    x = 19,302,736,724.37/159,473.06
  6. Step 6: Final answer
    x = 121,040.74

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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.