Home / 141,200.70-211,801.05-85,104.15

Finding the Fourth Proportional to 141,200.70, 211,801.05 and 85,104.15

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Solution

The fourth proportional to 141,200.70, 211,801.05 and 85,104.15 is: 127,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,200.70 : 211,801.05 = 85,104.15 : x
  2. Step 2: Convert to fraction form
    141,200.70/211,801.05 = 85,104.15/x
  3. Step 3: Cross multiply
    141,200.70x = 211,801.05 × 85,104.15
  4. Step 4: Simplify right side
    141,200.70x = 18,025,148,329.36
  5. Step 5: Solve for x
    x = 18,025,148,329.36/141,200.70
  6. Step 6: Final answer
    x = 127,656.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.