Home / 112,014.76-168,022.12-38,142.76

Finding the Fourth Proportional to 112,014.76, 168,022.12 and 38,142.76

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Solution

The fourth proportional to 112,014.76, 168,022.12 and 38,142.76 is: 57,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,014.76 : 168,022.12 = 38,142.76 : x
  2. Step 2: Convert to fraction form
    112,014.76/168,022.12 = 38,142.76/x
  3. Step 3: Cross multiply
    112,014.76x = 168,022.12 × 38,142.76
  4. Step 4: Simplify right side
    112,014.76x = 6,408,827,397.85
  5. Step 5: Solve for x
    x = 6,408,827,397.85/112,014.76
  6. Step 6: Final answer
    x = 57,214.13

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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.