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Finding the Fourth Proportional to 104,993.60, 157,490.40 and 103,611.20

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Solution

The fourth proportional to 104,993.60, 157,490.40 and 103,611.20 is: 155,416.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,993.60 : 157,490.40 = 103,611.20 : x
  2. Step 2: Convert to fraction form
    104,993.60/157,490.40 = 103,611.20/x
  3. Step 3: Cross multiply
    104,993.60x = 157,490.40 × 103,611.20
  4. Step 4: Simplify right side
    104,993.60x = 16,317,769,332.48
  5. Step 5: Solve for x
    x = 16,317,769,332.48/104,993.60
  6. Step 6: Final answer
    x = 155,416.80

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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.