Home / 113,991.31-157,327.55-66,272.34

Finding the Fourth Proportional to 113,991.31, 157,327.55 and 66,272.34

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Solution

The fourth proportional to 113,991.31, 157,327.55 and 66,272.34 is: 91,467.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,991.31 : 157,327.55 = 66,272.34 : x
  2. Step 2: Convert to fraction form
    113,991.31/157,327.55 = 66,272.34/x
  3. Step 3: Cross multiply
    113,991.31x = 157,327.55 × 66,272.34
  4. Step 4: Simplify right side
    113,991.31x = 10,426,464,884.97
  5. Step 5: Solve for x
    x = 10,426,464,884.97/113,991.31
  6. Step 6: Final answer
    x = 91,467.19

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1.5x scale

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.