Home / 115,617.90-159,579.36-75,261.38

Finding the Fourth Proportional to 115,617.90, 159,579.36 and 75,261.38

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Solution

The fourth proportional to 115,617.90, 159,579.36 and 75,261.38 is: 103,878.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,617.90 : 159,579.36 = 75,261.38 : x
  2. Step 2: Convert to fraction form
    115,617.90/159,579.36 = 75,261.38/x
  3. Step 3: Cross multiply
    115,617.90x = 159,579.36 × 75,261.38
  4. Step 4: Simplify right side
    115,617.90x = 12,010,162,055.22
  5. Step 5: Solve for x
    x = 12,010,162,055.22/115,617.90
  6. Step 6: Final answer
    x = 103,878.05

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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.