Home / 123,554.08-170,503.14-66,964.78

Finding the Fourth Proportional to 123,554.08, 170,503.14 and 66,964.78

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Solution

The fourth proportional to 123,554.08, 170,503.14 and 66,964.78 is: 92,410.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,554.08 : 170,503.14 = 66,964.78 : x
  2. Step 2: Convert to fraction form
    123,554.08/170,503.14 = 66,964.78/x
  3. Step 3: Cross multiply
    123,554.08x = 170,503.14 × 66,964.78
  4. Step 4: Simplify right side
    123,554.08x = 11,417,705,259.41
  5. Step 5: Solve for x
    x = 11,417,705,259.41/123,554.08
  6. Step 6: Final answer
    x = 92,410.59

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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.