Home / 122,048.72-183,091.80-51,909.20

Finding the Fourth Proportional to 122,048.72, 183,091.80 and 51,909.20

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Solution

The fourth proportional to 122,048.72, 183,091.80 and 51,909.20 is: 77,871.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,048.72 : 183,091.80 = 51,909.20 : x
  2. Step 2: Convert to fraction form
    122,048.72/183,091.80 = 51,909.20/x
  3. Step 3: Cross multiply
    122,048.72x = 183,091.80 × 51,909.20
  4. Step 4: Simplify right side
    122,048.72x = 9,504,148,864.56
  5. Step 5: Solve for x
    x = 9,504,148,864.56/122,048.72
  6. Step 6: Final answer
    x = 77,871.76

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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.