Home / 158,727.12-238,090.80-47,919.12

Finding the Fourth Proportional to 158,727.12, 238,090.80 and 47,919.12

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Solution

The fourth proportional to 158,727.12, 238,090.80 and 47,919.12 is: 71,878.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,727.12 : 238,090.80 = 47,919.12 : x
  2. Step 2: Convert to fraction form
    158,727.12/238,090.80 = 47,919.12/x
  3. Step 3: Cross multiply
    158,727.12x = 238,090.80 × 47,919.12
  4. Step 4: Simplify right side
    158,727.12x = 11,409,101,616.10
  5. Step 5: Solve for x
    x = 11,409,101,616.10/158,727.12
  6. Step 6: Final answer
    x = 71,878.72

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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.