Home / 109,521.62-151,139.73-59,220.50

Finding the Fourth Proportional to 109,521.62, 151,139.73 and 59,220.50

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Solution

The fourth proportional to 109,521.62, 151,139.73 and 59,220.50 is: 81,724.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,521.62 : 151,139.73 = 59,220.50 : x
  2. Step 2: Convert to fraction form
    109,521.62/151,139.73 = 59,220.50/x
  3. Step 3: Cross multiply
    109,521.62x = 151,139.73 × 59,220.50
  4. Step 4: Simplify right side
    109,521.62x = 8,950,570,380.47
  5. Step 5: Solve for x
    x = 8,950,570,380.47/109,521.62
  6. Step 6: Final answer
    x = 81,724.23

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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.