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Finding the Fourth Proportional to 159,077.05, 219,523.96 and 86,477.53

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Solution

The fourth proportional to 159,077.05, 219,523.96 and 86,477.53 is: 119,337.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,077.05 : 219,523.96 = 86,477.53 : x
  2. Step 2: Convert to fraction form
    159,077.05/219,523.96 = 86,477.53/x
  3. Step 3: Cross multiply
    159,077.05x = 219,523.96 × 86,477.53
  4. Step 4: Simplify right side
    159,077.05x = 18,983,889,836.62
  5. Step 5: Solve for x
    x = 18,983,889,836.62/159,077.05
  6. Step 6: Final answer
    x = 119,337.70

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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.