Home / 112,008.20-168,012.30-102,331.40

Finding the Fourth Proportional to 112,008.20, 168,012.30 and 102,331.40

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Solution

The fourth proportional to 112,008.20, 168,012.30 and 102,331.40 is: 153,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,008.20 : 168,012.30 = 102,331.40 : x
  2. Step 2: Convert to fraction form
    112,008.20/168,012.30 = 102,331.40/x
  3. Step 3: Cross multiply
    112,008.20x = 168,012.30 × 102,331.40
  4. Step 4: Simplify right side
    112,008.20x = 17,192,933,876.22
  5. Step 5: Solve for x
    x = 17,192,933,876.22/112,008.20
  6. Step 6: Final answer
    x = 153,497.10

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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.