Home / 151,462.44-209,018.34-87,837.21

Finding the Fourth Proportional to 151,462.44, 209,018.34 and 87,837.21

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Solution

The fourth proportional to 151,462.44, 209,018.34 and 87,837.21 is: 121,215.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,462.44 : 209,018.34 = 87,837.21 : x
  2. Step 2: Convert to fraction form
    151,462.44/209,018.34 = 87,837.21/x
  3. Step 3: Cross multiply
    151,462.44x = 209,018.34 × 87,837.21
  4. Step 4: Simplify right side
    151,462.44x = 18,359,587,824.43
  5. Step 5: Solve for x
    x = 18,359,587,824.43/151,462.44
  6. Step 6: Final answer
    x = 121,215.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.