Home / 250,004.78-345,015.39-136,827.50

Finding the Fourth Proportional to 250,004.78, 345,015.39 and 136,827.50

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Solution

The fourth proportional to 250,004.78, 345,015.39 and 136,827.50 is: 188,826.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,004.78 : 345,015.39 = 136,827.50 : x
  2. Step 2: Convert to fraction form
    250,004.78/345,015.39 = 136,827.50/x
  3. Step 3: Cross multiply
    250,004.78x = 345,015.39 × 136,827.50
  4. Step 4: Simplify right side
    250,004.78x = 47,207,593,275.23
  5. Step 5: Solve for x
    x = 47,207,593,275.23/250,004.78
  6. Step 6: Final answer
    x = 188,826.76

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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.