Home / 148,709.12-205,220.06-80,726.63

Finding the Fourth Proportional to 148,709.12, 205,220.06 and 80,726.63

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Solution

The fourth proportional to 148,709.12, 205,220.06 and 80,726.63 is: 111,403.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,709.12 : 205,220.06 = 80,726.63 : x
  2. Step 2: Convert to fraction form
    148,709.12/205,220.06 = 80,726.63/x
  3. Step 3: Cross multiply
    148,709.12x = 205,220.06 × 80,726.63
  4. Step 4: Simplify right side
    148,709.12x = 16,566,722,422.46
  5. Step 5: Solve for x
    x = 16,566,722,422.46/148,709.12
  6. Step 6: Final answer
    x = 111,403.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.