Home / 115,210.30-172,833.64-40,328.62

Finding the Fourth Proportional to 115,210.30, 172,833.64 and 40,328.62

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Solution

The fourth proportional to 115,210.30, 172,833.64 and 40,328.62 is: 60,499.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,210.30 : 172,833.64 = 40,328.62 : x
  2. Step 2: Convert to fraction form
    115,210.30/172,833.64 = 40,328.62/x
  3. Step 3: Cross multiply
    115,210.30x = 172,833.64 × 40,328.62
  4. Step 4: Simplify right side
    115,210.30x = 6,970,142,190.78
  5. Step 5: Solve for x
    x = 6,970,142,190.78/115,210.30
  6. Step 6: Final answer
    x = 60,499.30

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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.