Home / 115,072.54-158,788.76-64,090.03

Finding the Fourth Proportional to 115,072.54, 158,788.76 and 64,090.03

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Solution

The fourth proportional to 115,072.54, 158,788.76 and 64,090.03 is: 88,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,072.54 : 158,788.76 = 64,090.03 : x
  2. Step 2: Convert to fraction form
    115,072.54/158,788.76 = 64,090.03/x
  3. Step 3: Cross multiply
    115,072.54x = 158,788.76 × 64,090.03
  4. Step 4: Simplify right side
    115,072.54x = 10,176,775,674.64
  5. Step 5: Solve for x
    x = 10,176,775,674.64/115,072.54
  6. Step 6: Final answer
    x = 88,437.92

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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.