Home / 115,425.08-159,285.98-64,434.86

Finding the Fourth Proportional to 115,425.08, 159,285.98 and 64,434.86

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Solution

The fourth proportional to 115,425.08, 159,285.98 and 64,434.86 is: 88,919.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,425.08 : 159,285.98 = 64,434.86 : x
  2. Step 2: Convert to fraction form
    115,425.08/159,285.98 = 64,434.86/x
  3. Step 3: Cross multiply
    115,425.08x = 159,285.98 × 64,434.86
  4. Step 4: Simplify right side
    115,425.08x = 10,263,569,821.26
  5. Step 5: Solve for x
    x = 10,263,569,821.26/115,425.08
  6. Step 6: Final answer
    x = 88,919.75

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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.