Home / 171,211.20-236,421.60-107,659.20

Finding the Fourth Proportional to 171,211.20, 236,421.60 and 107,659.20

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Solution

The fourth proportional to 171,211.20, 236,421.60 and 107,659.20 is: 148,664.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,211.20 : 236,421.60 = 107,659.20 : x
  2. Step 2: Convert to fraction form
    171,211.20/236,421.60 = 107,659.20/x
  3. Step 3: Cross multiply
    171,211.20x = 236,421.60 × 107,659.20
  4. Step 4: Simplify right side
    171,211.20x = 25,452,960,318.72
  5. Step 5: Solve for x
    x = 25,452,960,318.72/171,211.20
  6. Step 6: Final answer
    x = 148,664.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.