Home / 156,133.80-215,328.42-125,910.36

Finding the Fourth Proportional to 156,133.80, 215,328.42 and 125,910.36

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Solution

The fourth proportional to 156,133.80, 215,328.42 and 125,910.36 is: 173,646.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,133.80 : 215,328.42 = 125,910.36 : x
  2. Step 2: Convert to fraction form
    156,133.80/215,328.42 = 125,910.36/x
  3. Step 3: Cross multiply
    156,133.80x = 215,328.42 × 125,910.36
  4. Step 4: Simplify right side
    156,133.80x = 27,112,078,880.43
  5. Step 5: Solve for x
    x = 27,112,078,880.43/156,133.80
  6. Step 6: Final answer
    x = 173,646.44

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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.