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Finding the Fourth Proportional to 115,219.38, 172,829.06 and 36,339.72

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Solution

The fourth proportional to 115,219.38, 172,829.06 and 36,339.72 is: 54,509.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,219.38 : 172,829.06 = 36,339.72 : x
  2. Step 2: Convert to fraction form
    115,219.38/172,829.06 = 36,339.72/x
  3. Step 3: Cross multiply
    115,219.38x = 172,829.06 × 36,339.72
  4. Step 4: Simplify right side
    115,219.38x = 6,280,559,648.26
  5. Step 5: Solve for x
    x = 6,280,559,648.26/115,219.38
  6. Step 6: Final answer
    x = 54,509.58

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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.