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Finding the Fourth Proportional to 103,781.60, 155,672.40 and 94,596.20

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Solution

The fourth proportional to 103,781.60, 155,672.40 and 94,596.20 is: 141,894.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,781.60 : 155,672.40 = 94,596.20 : x
  2. Step 2: Convert to fraction form
    103,781.60/155,672.40 = 94,596.20/x
  3. Step 3: Cross multiply
    103,781.60x = 155,672.40 × 94,596.20
  4. Step 4: Simplify right side
    103,781.60x = 14,726,017,484.88
  5. Step 5: Solve for x
    x = 14,726,017,484.88/103,781.60
  6. Step 6: Final answer
    x = 141,894.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.