Home / 123,508.40-170,441.70-66,919.77

Finding the Fourth Proportional to 123,508.40, 170,441.70 and 66,919.77

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Solution

The fourth proportional to 123,508.40, 170,441.70 and 66,919.77 is: 92,349.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,508.40 : 170,441.70 = 66,919.77 : x
  2. Step 2: Convert to fraction form
    123,508.40/170,441.70 = 66,919.77/x
  3. Step 3: Cross multiply
    123,508.40x = 170,441.70 × 66,919.77
  4. Step 4: Simplify right side
    123,508.40x = 11,405,919,362.41
  5. Step 5: Solve for x
    x = 11,405,919,362.41/123,508.40
  6. Step 6: Final answer
    x = 92,349.34

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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.