Home / 112,022.58-154,505.76-76,152.12

Finding the Fourth Proportional to 112,022.58, 154,505.76 and 76,152.12

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Solution

The fourth proportional to 112,022.58, 154,505.76 and 76,152.12 is: 105,031.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,022.58 : 154,505.76 = 76,152.12 : x
  2. Step 2: Convert to fraction form
    112,022.58/154,505.76 = 76,152.12/x
  3. Step 3: Cross multiply
    112,022.58x = 154,505.76 × 76,152.12
  4. Step 4: Simplify right side
    112,022.58x = 11,765,941,176.21
  5. Step 5: Solve for x
    x = 11,765,941,176.21/112,022.58
  6. Step 6: Final answer
    x = 105,031.87

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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.