Home / 115,038.72-172,599.60-40,169.92

Finding the Fourth Proportional to 115,038.72, 172,599.60 and 40,169.92

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Solution

The fourth proportional to 115,038.72, 172,599.60 and 40,169.92 is: 60,269.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,038.72 : 172,599.60 = 40,169.92 : x
  2. Step 2: Convert to fraction form
    115,038.72/172,599.60 = 40,169.92/x
  3. Step 3: Cross multiply
    115,038.72x = 172,599.60 × 40,169.92
  4. Step 4: Simplify right side
    115,038.72x = 6,933,312,124.03
  5. Step 5: Solve for x
    x = 6,933,312,124.03/115,038.72
  6. Step 6: Final answer
    x = 60,269.38

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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.