Home / 138,870.99-208,263.22-50,112.95

Finding the Fourth Proportional to 138,870.99, 208,263.22 and 50,112.95

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Solution

The fourth proportional to 138,870.99, 208,263.22 and 50,112.95 is: 75,153.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,870.99 : 208,263.22 = 50,112.95 : x
  2. Step 2: Convert to fraction form
    138,870.99/208,263.22 = 50,112.95/x
  3. Step 3: Cross multiply
    138,870.99x = 208,263.22 × 50,112.95
  4. Step 4: Simplify right side
    138,870.99x = 10,436,683,164.10
  5. Step 5: Solve for x
    x = 10,436,683,164.10/138,870.99
  6. Step 6: Final answer
    x = 75,153.80

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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.