Home / 92,521.44-138,437.91-81,223.53

Finding the Fourth Proportional to 92,521.44, 138,437.91 and 81,223.53

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Solution

The fourth proportional to 92,521.44, 138,437.91 and 81,223.53 is: 121,533.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,521.44 : 138,437.91 = 81,223.53 : x
  2. Step 2: Convert to fraction form
    92,521.44/138,437.91 = 81,223.53/x
  3. Step 3: Cross multiply
    92,521.44x = 138,437.91 × 81,223.53
  4. Step 4: Simplify right side
    92,521.44x = 11,244,415,736.02
  5. Step 5: Solve for x
    x = 11,244,415,736.02/92,521.44
  6. Step 6: Final answer
    x = 121,533.08

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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.