Home / 109,266.72-150,761.22-66,809.76

Finding the Fourth Proportional to 109,266.72, 150,761.22 and 66,809.76

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Solution

The fourth proportional to 109,266.72, 150,761.22 and 66,809.76 is: 92,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,266.72 : 150,761.22 = 66,809.76 : x
  2. Step 2: Convert to fraction form
    109,266.72/150,761.22 = 66,809.76/x
  3. Step 3: Cross multiply
    109,266.72x = 150,761.22 × 66,809.76
  4. Step 4: Simplify right side
    109,266.72x = 10,072,320,925.51
  5. Step 5: Solve for x
    x = 10,072,320,925.51/109,266.72
  6. Step 6: Final answer
    x = 92,181.05

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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.