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Finding the Fourth Proportional to 117,866.68, 162,656 and 64,152.08

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Solution

The fourth proportional to 117,866.68, 162,656 and 64,152.08 is: 88,529.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,866.68 : 162,656 = 64,152.08 : x
  2. Step 2: Convert to fraction form
    117,866.68/162,656 = 64,152.08/x
  3. Step 3: Cross multiply
    117,866.68x = 162,656 × 64,152.08
  4. Step 4: Simplify right side
    117,866.68x = 10,434,720,724.48
  5. Step 5: Solve for x
    x = 10,434,720,724.48/117,866.68
  6. Step 6: Final answer
    x = 88,529.86

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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.