Home / 112,125.40-168,188.10-56,138.20

Finding the Fourth Proportional to 112,125.40, 168,188.10 and 56,138.20

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Solution

The fourth proportional to 112,125.40, 168,188.10 and 56,138.20 is: 84,207.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,125.40 : 168,188.10 = 56,138.20 : x
  2. Step 2: Convert to fraction form
    112,125.40/168,188.10 = 56,138.20/x
  3. Step 3: Cross multiply
    112,125.40x = 168,188.10 × 56,138.20
  4. Step 4: Simplify right side
    112,125.40x = 9,441,777,195.42
  5. Step 5: Solve for x
    x = 9,441,777,195.42/112,125.40
  6. Step 6: Final answer
    x = 84,207.30

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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.