Home / 215,520.15-297,427.03-120,026.84

Finding the Fourth Proportional to 215,520.15, 297,427.03 and 120,026.84

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Solution

The fourth proportional to 215,520.15, 297,427.03 and 120,026.84 is: 165,642.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,520.15 : 297,427.03 = 120,026.84 : x
  2. Step 2: Convert to fraction form
    215,520.15/297,427.03 = 120,026.84/x
  3. Step 3: Cross multiply
    215,520.15x = 297,427.03 × 120,026.84
  4. Step 4: Simplify right side
    215,520.15x = 35,699,226,984.99
  5. Step 5: Solve for x
    x = 35,699,226,984.99/215,520.15
  6. Step 6: Final answer
    x = 165,642.18

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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.