Home / 148,588.86-221,713.11-139,548.36

Finding the Fourth Proportional to 148,588.86, 221,713.11 and 139,548.36

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Solution

The fourth proportional to 148,588.86, 221,713.11 and 139,548.36 is: 208,223.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,588.86 : 221,713.11 = 139,548.36 : x
  2. Step 2: Convert to fraction form
    148,588.86/221,713.11 = 139,548.36/x
  3. Step 3: Cross multiply
    148,588.86x = 221,713.11 × 139,548.36
  4. Step 4: Simplify right side
    148,588.86x = 30,939,700,891.00
  5. Step 5: Solve for x
    x = 30,939,700,891.00/148,588.86
  6. Step 6: Final answer
    x = 208,223.56

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.