Home / 115,447.16-159,315.55-64,460.75

Finding the Fourth Proportional to 115,447.16, 159,315.55 and 64,460.75

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Solution

The fourth proportional to 115,447.16, 159,315.55 and 64,460.75 is: 88,954.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,447.16 : 159,315.55 = 64,460.75 : x
  2. Step 2: Convert to fraction form
    115,447.16/159,315.55 = 64,460.75/x
  3. Step 3: Cross multiply
    115,447.16x = 159,315.55 × 64,460.75
  4. Step 4: Simplify right side
    115,447.16x = 10,269,598,881.93
  5. Step 5: Solve for x
    x = 10,269,598,881.93/115,447.16
  6. Step 6: Final answer
    x = 88,954.97

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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.