Home / 138,876.24-208,271.36-50,118.50

Finding the Fourth Proportional to 138,876.24, 208,271.36 and 50,118.50

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Solution

The fourth proportional to 138,876.24, 208,271.36 and 50,118.50 is: 75,162.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,876.24 : 208,271.36 = 50,118.50 : x
  2. Step 2: Convert to fraction form
    138,876.24/208,271.36 = 50,118.50/x
  3. Step 3: Cross multiply
    138,876.24x = 208,271.36 × 50,118.50
  4. Step 4: Simplify right side
    138,876.24x = 10,438,248,156.16
  5. Step 5: Solve for x
    x = 10,438,248,156.16/138,876.24
  6. Step 6: Final answer
    x = 75,162.23

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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.