Home / 115,460.31-159,445.27-109,170.28

Finding the Fourth Proportional to 115,460.31, 159,445.27 and 109,170.28

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Solution

The fourth proportional to 115,460.31, 159,445.27 and 109,170.28 is: 150,759.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,460.31 : 159,445.27 = 109,170.28 : x
  2. Step 2: Convert to fraction form
    115,460.31/159,445.27 = 109,170.28/x
  3. Step 3: Cross multiply
    115,460.31x = 159,445.27 × 109,170.28
  4. Step 4: Simplify right side
    115,460.31x = 17,406,684,770.58
  5. Step 5: Solve for x
    x = 17,406,684,770.58/115,460.31
  6. Step 6: Final answer
    x = 150,759.03

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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.