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Finding the Fourth Proportional to 109,702.60, 151,388.53 and 61,954.92

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Solution

The fourth proportional to 109,702.60, 151,388.53 and 61,954.92 is: 85,497.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,702.60 : 151,388.53 = 61,954.92 : x
  2. Step 2: Convert to fraction form
    109,702.60/151,388.53 = 61,954.92/x
  3. Step 3: Cross multiply
    109,702.60x = 151,388.53 × 61,954.92
  4. Step 4: Simplify right side
    109,702.60x = 9,379,264,110.18
  5. Step 5: Solve for x
    x = 9,379,264,110.18/109,702.60
  6. Step 6: Final answer
    x = 85,497.19

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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.