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Finding the Fourth Proportional to 115,151.58, 158,881.37 and 64,850.58

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Solution

The fourth proportional to 115,151.58, 158,881.37 and 64,850.58 is: 89,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,151.58 : 158,881.37 = 64,850.58 : x
  2. Step 2: Convert to fraction form
    115,151.58/158,881.37 = 64,850.58/x
  3. Step 3: Cross multiply
    115,151.58x = 158,881.37 × 64,850.58
  4. Step 4: Simplify right side
    115,151.58x = 10,303,548,671.44
  5. Step 5: Solve for x
    x = 10,303,548,671.44/115,151.58
  6. Step 6: Final answer
    x = 89,478.14

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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.