Home / 138,964.80-208,447.36-33,783.04

Finding the Fourth Proportional to 138,964.80, 208,447.36 and 33,783.04

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Solution

The fourth proportional to 138,964.80, 208,447.36 and 33,783.04 is: 50,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,964.80 : 208,447.36 = 33,783.04 : x
  2. Step 2: Convert to fraction form
    138,964.80/208,447.36 = 33,783.04/x
  3. Step 3: Cross multiply
    138,964.80x = 208,447.36 × 33,783.04
  4. Step 4: Simplify right side
    138,964.80x = 7,041,985,500.77
  5. Step 5: Solve for x
    x = 7,041,985,500.77/138,964.80
  6. Step 6: Final answer
    x = 50,674.60

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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.