Home / 120,570.32-166,291.04-77,554.73

Finding the Fourth Proportional to 120,570.32, 166,291.04 and 77,554.73

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Solution

The fourth proportional to 120,570.32, 166,291.04 and 77,554.73 is: 106,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,570.32 : 166,291.04 = 77,554.73 : x
  2. Step 2: Convert to fraction form
    120,570.32/166,291.04 = 77,554.73/x
  3. Step 3: Cross multiply
    120,570.32x = 166,291.04 × 77,554.73
  4. Step 4: Simplify right side
    120,570.32x = 12,896,657,318.23
  5. Step 5: Solve for x
    x = 12,896,657,318.23/120,570.32
  6. Step 6: Final answer
    x = 106,963.78

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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.