Home / 111,378.05-167,067.08-87,758.45

Finding the Fourth Proportional to 111,378.05, 167,067.08 and 87,758.45

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Solution

The fourth proportional to 111,378.05, 167,067.08 and 87,758.45 is: 131,637.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,378.05 : 167,067.08 = 87,758.45 : x
  2. Step 2: Convert to fraction form
    111,378.05/167,067.08 = 87,758.45/x
  3. Step 3: Cross multiply
    111,378.05x = 167,067.08 × 87,758.45
  4. Step 4: Simplify right side
    111,378.05x = 14,661,547,548.03
  5. Step 5: Solve for x
    x = 14,661,547,548.03/111,378.05
  6. Step 6: Final answer
    x = 131,637.68

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1.5x scale

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.