Home / 156,911.51-236,221.04-142,961.15

Finding the Fourth Proportional to 156,911.51, 236,221.04 and 142,961.15

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Solution

The fourth proportional to 156,911.51, 236,221.04 and 142,961.15 is: 215,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,911.51 : 236,221.04 = 142,961.15 : x
  2. Step 2: Convert to fraction form
    156,911.51/236,221.04 = 142,961.15/x
  3. Step 3: Cross multiply
    156,911.51x = 236,221.04 × 142,961.15
  4. Step 4: Simplify right side
    156,911.51x = 33,770,431,532.60
  5. Step 5: Solve for x
    x = 33,770,431,532.60/156,911.51
  6. Step 6: Final answer
    x = 215,219.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.