Home / 215,530.10-297,440.73-120,036.80

Finding the Fourth Proportional to 215,530.10, 297,440.73 and 120,036.80

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Solution

The fourth proportional to 215,530.10, 297,440.73 and 120,036.80 is: 165,655.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,530.10 : 297,440.73 = 120,036.80 : x
  2. Step 2: Convert to fraction form
    215,530.10/297,440.73 = 120,036.80/x
  3. Step 3: Cross multiply
    215,530.10x = 297,440.73 × 120,036.80
  4. Step 4: Simplify right side
    215,530.10x = 35,703,833,245.24
  5. Step 5: Solve for x
    x = 35,703,833,245.24/215,530.10
  6. Step 6: Final answer
    x = 165,655.90

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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.