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Finding the Fourth Proportional to 117,227.76, 161,774.40 and 68,820.22

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Solution

The fourth proportional to 117,227.76, 161,774.40 and 68,820.22 is: 94,971.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,227.76 : 161,774.40 = 68,820.22 : x
  2. Step 2: Convert to fraction form
    117,227.76/161,774.40 = 68,820.22/x
  3. Step 3: Cross multiply
    117,227.76x = 161,774.40 × 68,820.22
  4. Step 4: Simplify right side
    117,227.76x = 11,133,349,798.37
  5. Step 5: Solve for x
    x = 11,133,349,798.37/117,227.76
  6. Step 6: Final answer
    x = 94,971.96

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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.