Home / 148,866.80-205,468.65-91,555.40

Finding the Fourth Proportional to 148,866.80, 205,468.65 and 91,555.40

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Solution

The fourth proportional to 148,866.80, 205,468.65 and 91,555.40 is: 126,366.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,866.80 : 205,468.65 = 91,555.40 : x
  2. Step 2: Convert to fraction form
    148,866.80/205,468.65 = 91,555.40/x
  3. Step 3: Cross multiply
    148,866.80x = 205,468.65 × 91,555.40
  4. Step 4: Simplify right side
    148,866.80x = 18,811,764,951.88
  5. Step 5: Solve for x
    x = 18,811,764,951.88/148,866.80
  6. Step 6: Final answer
    x = 126,366.43

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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.