Home / 112,266.89-154,924.45-66,921.49

Finding the Fourth Proportional to 112,266.89, 154,924.45 and 66,921.49

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Solution

The fourth proportional to 112,266.89, 154,924.45 and 66,921.49 is: 92,349.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,266.89 : 154,924.45 = 66,921.49 : x
  2. Step 2: Convert to fraction form
    112,266.89/154,924.45 = 66,921.49/x
  3. Step 3: Cross multiply
    112,266.89x = 154,924.45 × 66,921.49
  4. Step 4: Simplify right side
    112,266.89x = 10,367,775,031.43
  5. Step 5: Solve for x
    x = 10,367,775,031.43/112,266.89
  6. Step 6: Final answer
    x = 92,349.36

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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.