Home / 157,270.47-235,736.01-77,215.33

Finding the Fourth Proportional to 157,270.47, 235,736.01 and 77,215.33

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Solution

The fourth proportional to 157,270.47, 235,736.01 and 77,215.33 is: 115,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,270.47 : 235,736.01 = 77,215.33 : x
  2. Step 2: Convert to fraction form
    157,270.47/235,736.01 = 77,215.33/x
  3. Step 3: Cross multiply
    157,270.47x = 235,736.01 × 77,215.33
  4. Step 4: Simplify right side
    157,270.47x = 18,202,434,654.13
  5. Step 5: Solve for x
    x = 18,202,434,654.13/157,270.47
  6. Step 6: Final answer
    x = 115,739.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.