Home / 107,979.20-161,968.80-37,865.60

Finding the Fourth Proportional to 107,979.20, 161,968.80 and 37,865.60

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Solution

The fourth proportional to 107,979.20, 161,968.80 and 37,865.60 is: 56,798.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,979.20 : 161,968.80 = 37,865.60 : x
  2. Step 2: Convert to fraction form
    107,979.20/161,968.80 = 37,865.60/x
  3. Step 3: Cross multiply
    107,979.20x = 161,968.80 × 37,865.60
  4. Step 4: Simplify right side
    107,979.20x = 6,133,045,793.28
  5. Step 5: Solve for x
    x = 6,133,045,793.28/107,979.20
  6. Step 6: Final answer
    x = 56,798.40

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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.