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Finding the Fourth Proportional to 141,732.60, 212,915.70 and 118,404.60

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Solution

The fourth proportional to 141,732.60, 212,915.70 and 118,404.60 is: 177,871.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,732.60 : 212,915.70 = 118,404.60 : x
  2. Step 2: Convert to fraction form
    141,732.60/212,915.70 = 118,404.60/x
  3. Step 3: Cross multiply
    141,732.60x = 212,915.70 × 118,404.60
  4. Step 4: Simplify right side
    141,732.60x = 25,210,198,292.22
  5. Step 5: Solve for x
    x = 25,210,198,292.22/141,732.60
  6. Step 6: Final answer
    x = 177,871.56

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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.