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Finding the Fourth Proportional to 159,503.40, 239,235.90 and 65,999.40

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Solution

The fourth proportional to 159,503.40, 239,235.90 and 65,999.40 is: 98,991.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,503.40 : 239,235.90 = 65,999.40 : x
  2. Step 2: Convert to fraction form
    159,503.40/239,235.90 = 65,999.40/x
  3. Step 3: Cross multiply
    159,503.40x = 239,235.90 × 65,999.40
  4. Step 4: Simplify right side
    159,503.40x = 15,789,425,858.46
  5. Step 5: Solve for x
    x = 15,789,425,858.46/159,503.40
  6. Step 6: Final answer
    x = 98,991.16

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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.