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Finding the Fourth Proportional to 117,612.29, 162,314.84 and 66,641.22

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Solution

The fourth proportional to 117,612.29, 162,314.84 and 66,641.22 is: 91,970.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,612.29 : 162,314.84 = 66,641.22 : x
  2. Step 2: Convert to fraction form
    117,612.29/162,314.84 = 66,641.22/x
  3. Step 3: Cross multiply
    117,612.29x = 162,314.84 × 66,641.22
  4. Step 4: Simplify right side
    117,612.29x = 10,816,858,628.50
  5. Step 5: Solve for x
    x = 10,816,858,628.50/117,612.29
  6. Step 6: Final answer
    x = 91,970.48

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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.