Home / 112,258.37-168,148.15-90,819.09

Finding the Fourth Proportional to 112,258.37, 168,148.15 and 90,819.09

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Solution

The fourth proportional to 112,258.37, 168,148.15 and 90,819.09 is: 136,034.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,258.37 : 168,148.15 = 90,819.09 : x
  2. Step 2: Convert to fraction form
    112,258.37/168,148.15 = 90,819.09/x
  3. Step 3: Cross multiply
    112,258.37x = 168,148.15 × 90,819.09
  4. Step 4: Simplify right side
    112,258.37x = 15,271,060,673.35
  5. Step 5: Solve for x
    x = 15,271,060,673.35/112,258.37
  6. Step 6: Final answer
    x = 136,034.94

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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.