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Finding the Fourth Proportional to 159,827.40, 239,741.10 and 66,515.40

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Solution

The fourth proportional to 159,827.40, 239,741.10 and 66,515.40 is: 99,773.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,827.40 : 239,741.10 = 66,515.40 : x
  2. Step 2: Convert to fraction form
    159,827.40/239,741.10 = 66,515.40/x
  3. Step 3: Cross multiply
    159,827.40x = 239,741.10 × 66,515.40
  4. Step 4: Simplify right side
    159,827.40x = 15,946,475,162.94
  5. Step 5: Solve for x
    x = 15,946,475,162.94/159,827.40
  6. Step 6: Final answer
    x = 99,773.10

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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.