Home / 115,269.10-159,072.26-64,285.12

Finding the Fourth Proportional to 115,269.10, 159,072.26 and 64,285.12

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Solution

The fourth proportional to 115,269.10, 159,072.26 and 64,285.12 is: 88,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,269.10 : 159,072.26 = 64,285.12 : x
  2. Step 2: Convert to fraction form
    115,269.10/159,072.26 = 64,285.12/x
  3. Step 3: Cross multiply
    115,269.10x = 159,072.26 × 64,285.12
  4. Step 4: Simplify right side
    115,269.10x = 10,225,979,322.77
  5. Step 5: Solve for x
    x = 10,225,979,322.77/115,269.10
  6. Step 6: Final answer
    x = 88,713.97

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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.