Home / 115,519.62-159,427.80-70,187.16

Finding the Fourth Proportional to 115,519.62, 159,427.80 and 70,187.16

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Solution

The fourth proportional to 115,519.62, 159,427.80 and 70,187.16 is: 96,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,519.62 : 159,427.80 = 70,187.16 : x
  2. Step 2: Convert to fraction form
    115,519.62/159,427.80 = 70,187.16/x
  3. Step 3: Cross multiply
    115,519.62x = 159,427.80 × 70,187.16
  4. Step 4: Simplify right side
    115,519.62x = 11,189,784,507.05
  5. Step 5: Solve for x
    x = 11,189,784,507.05/115,519.62
  6. Step 6: Final answer
    x = 96,864.80

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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.