Home / 115,426.08-159,287.36-64,435.86

Finding the Fourth Proportional to 115,426.08, 159,287.36 and 64,435.86

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Solution

The fourth proportional to 115,426.08, 159,287.36 and 64,435.86 is: 88,921.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,426.08 : 159,287.36 = 64,435.86 : x
  2. Step 2: Convert to fraction form
    115,426.08/159,287.36 = 64,435.86/x
  3. Step 3: Cross multiply
    115,426.08x = 159,287.36 × 64,435.86
  4. Step 4: Simplify right side
    115,426.08x = 10,263,818,028.73
  5. Step 5: Solve for x
    x = 10,263,818,028.73/115,426.08
  6. Step 6: Final answer
    x = 88,921.13

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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.