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Finding the Fourth Proportional to 115,053.44, 158,768.64 and 64,068.80

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Solution

The fourth proportional to 115,053.44, 158,768.64 and 64,068.80 is: 88,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,053.44 : 158,768.64 = 64,068.80 : x
  2. Step 2: Convert to fraction form
    115,053.44/158,768.64 = 64,068.80/x
  3. Step 3: Cross multiply
    115,053.44x = 158,768.64 × 64,068.80
  4. Step 4: Simplify right side
    115,053.44x = 10,172,116,242.43
  5. Step 5: Solve for x
    x = 10,172,116,242.43/115,053.44
  6. Step 6: Final answer
    x = 88,412.10

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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.