Home / 155,947.36-215,194.95-87,942.52

Finding the Fourth Proportional to 155,947.36, 215,194.95 and 87,942.52

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Solution

The fourth proportional to 155,947.36, 215,194.95 and 87,942.52 is: 121,353.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,947.36 : 215,194.95 = 87,942.52 : x
  2. Step 2: Convert to fraction form
    155,947.36/215,194.95 = 87,942.52/x
  3. Step 3: Cross multiply
    155,947.36x = 215,194.95 × 87,942.52
  4. Step 4: Simplify right side
    155,947.36x = 18,924,786,194.27
  5. Step 5: Solve for x
    x = 18,924,786,194.27/155,947.36
  6. Step 6: Final answer
    x = 121,353.68

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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.