Home / 112,031.38-154,570.14-66,673

Finding the Fourth Proportional to 112,031.38, 154,570.14 and 66,673

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Solution

The fourth proportional to 112,031.38, 154,570.14 and 66,673 is: 91,989.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.38 : 154,570.14 = 66,673 : x
  2. Step 2: Convert to fraction form
    112,031.38/154,570.14 = 66,673/x
  3. Step 3: Cross multiply
    112,031.38x = 154,570.14 × 66,673
  4. Step 4: Simplify right side
    112,031.38x = 10,305,654,944.22
  5. Step 5: Solve for x
    x = 10,305,654,944.22/112,031.38
  6. Step 6: Final answer
    x = 91,989.00

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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.