Home / 117,117.54-161,620.86-63,401.40

Finding the Fourth Proportional to 117,117.54, 161,620.86 and 63,401.40

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Solution

The fourth proportional to 117,117.54, 161,620.86 and 63,401.40 is: 87,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.54 : 161,620.86 = 63,401.40 : x
  2. Step 2: Convert to fraction form
    117,117.54/161,620.86 = 63,401.40/x
  3. Step 3: Cross multiply
    117,117.54x = 161,620.86 × 63,401.40
  4. Step 4: Simplify right side
    117,117.54x = 10,246,988,793.20
  5. Step 5: Solve for x
    x = 10,246,988,793.20/117,117.54
  6. Step 6: Final answer
    x = 87,493.20

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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.