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Finding the Fourth Proportional to 160,136.60, 240,204.90 and 81,404.60

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Solution

The fourth proportional to 160,136.60, 240,204.90 and 81,404.60 is: 122,106.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,136.60 : 240,204.90 = 81,404.60 : x
  2. Step 2: Convert to fraction form
    160,136.60/240,204.90 = 81,404.60/x
  3. Step 3: Cross multiply
    160,136.60x = 240,204.90 × 81,404.60
  4. Step 4: Simplify right side
    160,136.60x = 19,553,783,802.54
  5. Step 5: Solve for x
    x = 19,553,783,802.54/160,136.60
  6. Step 6: Final answer
    x = 122,106.90

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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.