Home / 112,008.30-168,012.45-99,761.10

Finding the Fourth Proportional to 112,008.30, 168,012.45 and 99,761.10

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Solution

The fourth proportional to 112,008.30, 168,012.45 and 99,761.10 is: 149,641.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,008.30 : 168,012.45 = 99,761.10 : x
  2. Step 2: Convert to fraction form
    112,008.30/168,012.45 = 99,761.10/x
  3. Step 3: Cross multiply
    112,008.30x = 168,012.45 × 99,761.10
  4. Step 4: Simplify right side
    112,008.30x = 16,761,106,825.70
  5. Step 5: Solve for x
    x = 16,761,106,825.70/112,008.30
  6. Step 6: Final answer
    x = 149,641.65

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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.