Home / 115,332.32-159,167.76-64,361.72

Finding the Fourth Proportional to 115,332.32, 159,167.76 and 64,361.72

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Solution

The fourth proportional to 115,332.32, 159,167.76 and 64,361.72 is: 88,824.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,332.32 : 159,167.76 = 64,361.72 : x
  2. Step 2: Convert to fraction form
    115,332.32/159,167.76 = 64,361.72/x
  3. Step 3: Cross multiply
    115,332.32x = 159,167.76 × 64,361.72
  4. Step 4: Simplify right side
    115,332.32x = 10,244,310,802.15
  5. Step 5: Solve for x
    x = 10,244,310,802.15/115,332.32
  6. Step 6: Final answer
    x = 88,824.28

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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.