Home / 161,738.64-242,633.76-68,258.16

Finding the Fourth Proportional to 161,738.64, 242,633.76 and 68,258.16

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Solution

The fourth proportional to 161,738.64, 242,633.76 and 68,258.16 is: 102,398.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,738.64 : 242,633.76 = 68,258.16 : x
  2. Step 2: Convert to fraction form
    161,738.64/242,633.76 = 68,258.16/x
  3. Step 3: Cross multiply
    161,738.64x = 242,633.76 × 68,258.16
  4. Step 4: Simplify right side
    161,738.64x = 16,561,734,011.48
  5. Step 5: Solve for x
    x = 16,561,734,011.48/161,738.64
  6. Step 6: Final answer
    x = 102,398.13

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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.