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Finding the Fourth Proportional to 159,539.60, 239,090.70 and 130,015.10

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Solution

The fourth proportional to 159,539.60, 239,090.70 and 130,015.10 is: 194,844.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,539.60 : 239,090.70 = 130,015.10 : x
  2. Step 2: Convert to fraction form
    159,539.60/239,090.70 = 130,015.10/x
  3. Step 3: Cross multiply
    159,539.60x = 239,090.70 × 130,015.10
  4. Step 4: Simplify right side
    159,539.60x = 31,085,401,269.57
  5. Step 5: Solve for x
    x = 31,085,401,269.57/159,539.60
  6. Step 6: Final answer
    x = 194,844.42

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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.