Home / 215,532.21-297,434.43-120,038.88

Finding the Fourth Proportional to 215,532.21, 297,434.43 and 120,038.88

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Solution

The fourth proportional to 215,532.21, 297,434.43 and 120,038.88 is: 165,653.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,532.21 : 297,434.43 = 120,038.88 : x
  2. Step 2: Convert to fraction form
    215,532.21/297,434.43 = 120,038.88/x
  3. Step 3: Cross multiply
    215,532.21x = 297,434.43 × 120,038.88
  4. Step 4: Simplify right side
    215,532.21x = 35,703,695,850.64
  5. Step 5: Solve for x
    x = 35,703,695,850.64/215,532.21
  6. Step 6: Final answer
    x = 165,653.64

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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.