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Finding the Fourth Proportional to 159,073.93, 219,523.28 and 86,476.80

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Solution

The fourth proportional to 159,073.93, 219,523.28 and 86,476.80 is: 119,338.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,073.93 : 219,523.28 = 86,476.80 : x
  2. Step 2: Convert to fraction form
    159,073.93/219,523.28 = 86,476.80/x
  3. Step 3: Cross multiply
    159,073.93x = 219,523.28 × 86,476.80
  4. Step 4: Simplify right side
    159,073.93x = 18,983,670,347.52
  5. Step 5: Solve for x
    x = 18,983,670,347.52/159,073.93
  6. Step 6: Final answer
    x = 119,338.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.