Home / 155,919.20-215,223.80-92,256.84

Finding the Fourth Proportional to 155,919.20, 215,223.80 and 92,256.84

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Solution

The fourth proportional to 155,919.20, 215,223.80 and 92,256.84 is: 127,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,919.20 : 215,223.80 = 92,256.84 : x
  2. Step 2: Convert to fraction form
    155,919.20/215,223.80 = 92,256.84/x
  3. Step 3: Cross multiply
    155,919.20x = 215,223.80 × 92,256.84
  4. Step 4: Simplify right side
    155,919.20x = 19,855,868,026.60
  5. Step 5: Solve for x
    x = 19,855,868,026.60/155,919.20
  6. Step 6: Final answer
    x = 127,347.17

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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.