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Finding the Fourth Proportional to 117,552.71, 162,272.40 and 79,363.98

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Solution

The fourth proportional to 117,552.71, 162,272.40 and 79,363.98 is: 109,555.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,552.71 : 162,272.40 = 79,363.98 : x
  2. Step 2: Convert to fraction form
    117,552.71/162,272.40 = 79,363.98/x
  3. Step 3: Cross multiply
    117,552.71x = 162,272.40 × 79,363.98
  4. Step 4: Simplify right side
    117,552.71x = 12,878,583,210.54
  5. Step 5: Solve for x
    x = 12,878,583,210.54/117,552.71
  6. Step 6: Final answer
    x = 109,555.81

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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.