Home / 155,901.28-215,145.84-92,237.44

Finding the Fourth Proportional to 155,901.28, 215,145.84 and 92,237.44

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Solution

The fourth proportional to 155,901.28, 215,145.84 and 92,237.44 is: 127,288.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,901.28 : 215,145.84 = 92,237.44 : x
  2. Step 2: Convert to fraction form
    155,901.28/215,145.84 = 92,237.44/x
  3. Step 3: Cross multiply
    155,901.28x = 215,145.84 × 92,237.44
  4. Step 4: Simplify right side
    155,901.28x = 19,844,501,508.25
  5. Step 5: Solve for x
    x = 19,844,501,508.25/155,901.28
  6. Step 6: Final answer
    x = 127,288.89

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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.