Home / 107,490.20-161,120.10-40,904.60

Finding the Fourth Proportional to 107,490.20, 161,120.10 and 40,904.60

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Solution

The fourth proportional to 107,490.20, 161,120.10 and 40,904.60 is: 61,313.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,490.20 : 161,120.10 = 40,904.60 : x
  2. Step 2: Convert to fraction form
    107,490.20/161,120.10 = 40,904.60/x
  3. Step 3: Cross multiply
    107,490.20x = 161,120.10 × 40,904.60
  4. Step 4: Simplify right side
    107,490.20x = 6,590,553,242.46
  5. Step 5: Solve for x
    x = 6,590,553,242.46/107,490.20
  6. Step 6: Final answer
    x = 61,313.06

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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.