Home / 136,043.52-203,985.28-69,440

Finding the Fourth Proportional to 136,043.52, 203,985.28 and 69,440

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Solution

The fourth proportional to 136,043.52, 203,985.28 and 69,440 is: 104,119.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,043.52 : 203,985.28 = 69,440 : x
  2. Step 2: Convert to fraction form
    136,043.52/203,985.28 = 69,440/x
  3. Step 3: Cross multiply
    136,043.52x = 203,985.28 × 69,440
  4. Step 4: Simplify right side
    136,043.52x = 14,164,737,843.20
  5. Step 5: Solve for x
    x = 14,164,737,843.20/136,043.52
  6. Step 6: Final answer
    x = 104,119.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.