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Finding the Fourth Proportional to 159,955.20, 240,015.60 and 65,254.80

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Solution

The fourth proportional to 159,955.20, 240,015.60 and 65,254.80 is: 97,915.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,955.20 : 240,015.60 = 65,254.80 : x
  2. Step 2: Convert to fraction form
    159,955.20/240,015.60 = 65,254.80/x
  3. Step 3: Cross multiply
    159,955.20x = 240,015.60 × 65,254.80
  4. Step 4: Simplify right side
    159,955.20x = 15,662,169,974.88
  5. Step 5: Solve for x
    x = 15,662,169,974.88/159,955.20
  6. Step 6: Final answer
    x = 97,915.98

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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.