Home / 215,835.60-297,856.44-120,339.12

Finding the Fourth Proportional to 215,835.60, 297,856.44 and 120,339.12

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Solution

The fourth proportional to 215,835.60, 297,856.44 and 120,339.12 is: 166,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835.60 : 297,856.44 = 120,339.12 : x
  2. Step 2: Convert to fraction form
    215,835.60/297,856.44 = 120,339.12/x
  3. Step 3: Cross multiply
    215,835.60x = 297,856.44 × 120,339.12
  4. Step 4: Simplify right side
    215,835.60x = 35,843,781,875.93
  5. Step 5: Solve for x
    x = 35,843,781,875.93/215,835.60
  6. Step 6: Final answer
    x = 166,069.83

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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.