Home / 153,874.04-212,178.75-100,059.26

Finding the Fourth Proportional to 153,874.04, 212,178.75 and 100,059.26

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Solution

The fourth proportional to 153,874.04, 212,178.75 and 100,059.26 is: 137,972.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,874.04 : 212,178.75 = 100,059.26 : x
  2. Step 2: Convert to fraction form
    153,874.04/212,178.75 = 100,059.26/x
  3. Step 3: Cross multiply
    153,874.04x = 212,178.75 × 100,059.26
  4. Step 4: Simplify right side
    153,874.04x = 21,230,448,712.73
  5. Step 5: Solve for x
    x = 21,230,448,712.73/153,874.04
  6. Step 6: Final answer
    x = 137,972.91

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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.