Home / 142,886.12-214,340.82-71,772.16

Finding the Fourth Proportional to 142,886.12, 214,340.82 and 71,772.16

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Solution

The fourth proportional to 142,886.12, 214,340.82 and 71,772.16 is: 107,664.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,886.12 : 214,340.82 = 71,772.16 : x
  2. Step 2: Convert to fraction form
    142,886.12/214,340.82 = 71,772.16/x
  3. Step 3: Cross multiply
    142,886.12x = 214,340.82 × 71,772.16
  4. Step 4: Simplify right side
    142,886.12x = 15,383,703,627.57
  5. Step 5: Solve for x
    x = 15,383,703,627.57/142,886.12
  6. Step 6: Final answer
    x = 107,664.09

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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.