Home / 148,930.18-205,525.01-80,947.31

Finding the Fourth Proportional to 148,930.18, 205,525.01 and 80,947.31

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Solution

The fourth proportional to 148,930.18, 205,525.01 and 80,947.31 is: 111,708.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,930.18 : 205,525.01 = 80,947.31 : x
  2. Step 2: Convert to fraction form
    148,930.18/205,525.01 = 80,947.31/x
  3. Step 3: Cross multiply
    148,930.18x = 205,525.01 × 80,947.31
  4. Step 4: Simplify right side
    148,930.18x = 16,636,695,871.97
  5. Step 5: Solve for x
    x = 16,636,695,871.97/148,930.18
  6. Step 6: Final answer
    x = 111,708.02

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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.