Home / 112,141.62-168,239.46-42,021.54

Finding the Fourth Proportional to 112,141.62, 168,239.46 and 42,021.54

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Solution

The fourth proportional to 112,141.62, 168,239.46 and 42,021.54 is: 63,042.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,141.62 : 168,239.46 = 42,021.54 : x
  2. Step 2: Convert to fraction form
    112,141.62/168,239.46 = 42,021.54/x
  3. Step 3: Cross multiply
    112,141.62x = 168,239.46 × 42,021.54
  4. Step 4: Simplify right side
    112,141.62x = 7,069,681,197.97
  5. Step 5: Solve for x
    x = 7,069,681,197.97/112,141.62
  6. Step 6: Final answer
    x = 63,042.44

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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.