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Finding the Fourth Proportional to 159,807.72, 239,818.59 and 66,313.56

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Solution

The fourth proportional to 159,807.72, 239,818.59 and 66,313.56 is: 99,514.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,807.72 : 239,818.59 = 66,313.56 : x
  2. Step 2: Convert to fraction form
    159,807.72/239,818.59 = 66,313.56/x
  3. Step 3: Cross multiply
    159,807.72x = 239,818.59 × 66,313.56
  4. Step 4: Simplify right side
    159,807.72x = 15,903,224,457.08
  5. Step 5: Solve for x
    x = 15,903,224,457.08/159,807.72
  6. Step 6: Final answer
    x = 99,514.74

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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.