Home / 111,067.00-153,291.08-87,374.50

Finding the Fourth Proportional to 111,067.00, 153,291.08 and 87,374.50

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Solution

The fourth proportional to 111,067.00, 153,291.08 and 87,374.50 is: 120,591.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,067.00 : 153,291.08 = 87,374.50 : x
  2. Step 2: Convert to fraction form
    111,067.00/153,291.08 = 87,374.50/x
  3. Step 3: Cross multiply
    111,067.00x = 153,291.08 × 87,374.50
  4. Step 4: Simplify right side
    111,067.00x = 13,393,731,304.67
  5. Step 5: Solve for x
    x = 13,393,731,304.67/111,067.00
  6. Step 6: Final answer
    x = 120,591.46

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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.