Home / 122,167.20-168,582.96-71,856.48

Finding the Fourth Proportional to 122,167.20, 168,582.96 and 71,856.48

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Solution

The fourth proportional to 122,167.20, 168,582.96 and 71,856.48 is: 99,157.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,167.20 : 168,582.96 = 71,856.48 : x
  2. Step 2: Convert to fraction form
    122,167.20/168,582.96 = 71,856.48/x
  3. Step 3: Cross multiply
    122,167.20x = 168,582.96 × 71,856.48
  4. Step 4: Simplify right side
    122,167.20x = 12,113,778,093.58
  5. Step 5: Solve for x
    x = 12,113,778,093.58/122,167.20
  6. Step 6: Final answer
    x = 99,157.37

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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.