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Finding the Fourth Proportional to 117,611.78, 162,302.29 and 63,897.62

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Solution

The fourth proportional to 117,611.78, 162,302.29 and 63,897.62 is: 88,177.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,611.78 : 162,302.29 = 63,897.62 : x
  2. Step 2: Convert to fraction form
    117,611.78/162,302.29 = 63,897.62/x
  3. Step 3: Cross multiply
    117,611.78x = 162,302.29 × 63,897.62
  4. Step 4: Simplify right side
    117,611.78x = 10,370,730,051.55
  5. Step 5: Solve for x
    x = 10,370,730,051.55/117,611.78
  6. Step 6: Final answer
    x = 88,177.65

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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.