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Finding the Fourth Proportional to 117,587.08, 162,265.50 and 63,871

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Solution

The fourth proportional to 117,587.08, 162,265.50 and 63,871 is: 88,139.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,587.08 : 162,265.50 = 63,871 : x
  2. Step 2: Convert to fraction form
    117,587.08/162,265.50 = 63,871/x
  3. Step 3: Cross multiply
    117,587.08x = 162,265.50 × 63,871
  4. Step 4: Simplify right side
    117,587.08x = 10,364,059,750.50
  5. Step 5: Solve for x
    x = 10,364,059,750.50/117,587.08
  6. Step 6: Final answer
    x = 88,139.44

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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.