Home / 121,123.36-181,692.72-38,020.64

Finding the Fourth Proportional to 121,123.36, 181,692.72 and 38,020.64

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Solution

The fourth proportional to 121,123.36, 181,692.72 and 38,020.64 is: 57,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,123.36 : 181,692.72 = 38,020.64 : x
  2. Step 2: Convert to fraction form
    121,123.36/181,692.72 = 38,020.64/x
  3. Step 3: Cross multiply
    121,123.36x = 181,692.72 × 38,020.64
  4. Step 4: Simplify right side
    121,123.36x = 6,908,073,497.74
  5. Step 5: Solve for x
    x = 6,908,073,497.74/121,123.36
  6. Step 6: Final answer
    x = 57,033.37

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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.