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Finding the Fourth Proportional to 164,999.70, 247,499.55 and 115,136.10

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Solution

The fourth proportional to 164,999.70, 247,499.55 and 115,136.10 is: 172,704.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,999.70 : 247,499.55 = 115,136.10 : x
  2. Step 2: Convert to fraction form
    164,999.70/247,499.55 = 115,136.10/x
  3. Step 3: Cross multiply
    164,999.70x = 247,499.55 × 115,136.10
  4. Step 4: Simplify right side
    164,999.70x = 28,496,132,938.76
  5. Step 5: Solve for x
    x = 28,496,132,938.76/164,999.70
  6. Step 6: Final answer
    x = 172,704.15

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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.