Home / 115,211.10-172,816.65-48,629.10

Finding the Fourth Proportional to 115,211.10, 172,816.65 and 48,629.10

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Solution

The fourth proportional to 115,211.10, 172,816.65 and 48,629.10 is: 72,943.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,211.10 : 172,816.65 = 48,629.10 : x
  2. Step 2: Convert to fraction form
    115,211.10/172,816.65 = 48,629.10/x
  3. Step 3: Cross multiply
    115,211.10x = 172,816.65 × 48,629.10
  4. Step 4: Simplify right side
    115,211.10x = 8,403,918,154.52
  5. Step 5: Solve for x
    x = 8,403,918,154.52/115,211.10
  6. Step 6: Final answer
    x = 72,943.65

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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.