Home / 156,921.51-236,236.13-142,971.15

Finding the Fourth Proportional to 156,921.51, 236,236.13 and 142,971.15

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Solution

The fourth proportional to 156,921.51, 236,236.13 and 142,971.15 is: 215,234.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,921.51 : 236,236.13 = 142,971.15 : x
  2. Step 2: Convert to fraction form
    156,921.51/236,236.13 = 142,971.15/x
  3. Step 3: Cross multiply
    156,921.51x = 236,236.13 × 142,971.15
  4. Step 4: Simplify right side
    156,921.51x = 33,774,951,177.65
  5. Step 5: Solve for x
    x = 33,774,951,177.65/156,921.51
  6. Step 6: Final answer
    x = 215,234.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.