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Finding the Fourth Proportional to 141,487.50, 195,280.48 and 81,098.62

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Solution

The fourth proportional to 141,487.50, 195,280.48 and 81,098.62 is: 111,931.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,487.50 : 195,280.48 = 81,098.62 : x
  2. Step 2: Convert to fraction form
    141,487.50/195,280.48 = 81,098.62/x
  3. Step 3: Cross multiply
    141,487.50x = 195,280.48 × 81,098.62
  4. Step 4: Simplify right side
    141,487.50x = 15,836,977,440.94
  5. Step 5: Solve for x
    x = 15,836,977,440.94/141,487.50
  6. Step 6: Final answer
    x = 111,931.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.