Home / 148,123.66-221,668.70-121,157.96

Finding the Fourth Proportional to 148,123.66, 221,668.70 and 121,157.96

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Solution

The fourth proportional to 148,123.66, 221,668.70 and 121,157.96 is: 181,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,123.66 : 221,668.70 = 121,157.96 : x
  2. Step 2: Convert to fraction form
    148,123.66/221,668.70 = 121,157.96/x
  3. Step 3: Cross multiply
    148,123.66x = 221,668.70 × 121,157.96
  4. Step 4: Simplify right side
    148,123.66x = 26,856,927,487.85
  5. Step 5: Solve for x
    x = 26,856,927,487.85/148,123.66
  6. Step 6: Final answer
    x = 181,314.23

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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.