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Finding the Fourth Proportional to 117,341.66, 161,952.81 and 76,984.22

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Solution

The fourth proportional to 117,341.66, 161,952.81 and 76,984.22 is: 106,252.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,341.66 : 161,952.81 = 76,984.22 : x
  2. Step 2: Convert to fraction form
    117,341.66/161,952.81 = 76,984.22/x
  3. Step 3: Cross multiply
    117,341.66x = 161,952.81 × 76,984.22
  4. Step 4: Simplify right side
    117,341.66x = 12,467,810,754.66
  5. Step 5: Solve for x
    x = 12,467,810,754.66/117,341.66
  6. Step 6: Final answer
    x = 106,252.21

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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.