Home / 112,020.76-168,031.14-92,219.91

Finding the Fourth Proportional to 112,020.76, 168,031.14 and 92,219.91

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Solution

The fourth proportional to 112,020.76, 168,031.14 and 92,219.91 is: 138,329.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,020.76 : 168,031.14 = 92,219.91 : x
  2. Step 2: Convert to fraction form
    112,020.76/168,031.14 = 92,219.91/x
  3. Step 3: Cross multiply
    112,020.76x = 168,031.14 × 92,219.91
  4. Step 4: Simplify right side
    112,020.76x = 15,495,816,608.00
  5. Step 5: Solve for x
    x = 15,495,816,608.00/112,020.76
  6. Step 6: Final answer
    x = 138,329.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.