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Finding the Fourth Proportional to 159,771.60, 239,657.40 and 89,641.80

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Solution

The fourth proportional to 159,771.60, 239,657.40 and 89,641.80 is: 134,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,771.60 : 239,657.40 = 89,641.80 : x
  2. Step 2: Convert to fraction form
    159,771.60/239,657.40 = 89,641.80/x
  3. Step 3: Cross multiply
    159,771.60x = 239,657.40 × 89,641.80
  4. Step 4: Simplify right side
    159,771.60x = 21,483,320,719.32
  5. Step 5: Solve for x
    x = 21,483,320,719.32/159,771.60
  6. Step 6: Final answer
    x = 134,462.70

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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.