Home / 115,211.60-172,817.40-48,629.60

Finding the Fourth Proportional to 115,211.60, 172,817.40 and 48,629.60

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Solution

The fourth proportional to 115,211.60, 172,817.40 and 48,629.60 is: 72,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,211.60 : 172,817.40 = 48,629.60 : x
  2. Step 2: Convert to fraction form
    115,211.60/172,817.40 = 48,629.60/x
  3. Step 3: Cross multiply
    115,211.60x = 172,817.40 × 48,629.60
  4. Step 4: Simplify right side
    115,211.60x = 8,404,041,035.04
  5. Step 5: Solve for x
    x = 8,404,041,035.04/115,211.60
  6. Step 6: Final answer
    x = 72,944.40

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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.