Home / 112,031.49-154,596.25-66,712.80

Finding the Fourth Proportional to 112,031.49, 154,596.25 and 66,712.80

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Solution

The fourth proportional to 112,031.49, 154,596.25 and 66,712.80 is: 92,059.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,031.49 : 154,596.25 = 66,712.80 : x
  2. Step 2: Convert to fraction form
    112,031.49/154,596.25 = 66,712.80/x
  3. Step 3: Cross multiply
    112,031.49x = 154,596.25 × 66,712.80
  4. Step 4: Simplify right side
    112,031.49x = 10,313,548,373.44
  5. Step 5: Solve for x
    x = 10,313,548,373.44/112,031.49
  6. Step 6: Final answer
    x = 92,059.37

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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.