Home / 106,129.62-146,422.08-65,828.88

Finding the Fourth Proportional to 106,129.62, 146,422.08 and 65,828.88

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Solution

The fourth proportional to 106,129.62, 146,422.08 and 65,828.88 is: 90,821.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,129.62 : 146,422.08 = 65,828.88 : x
  2. Step 2: Convert to fraction form
    106,129.62/146,422.08 = 65,828.88/x
  3. Step 3: Cross multiply
    106,129.62x = 146,422.08 × 65,828.88
  4. Step 4: Simplify right side
    106,129.62x = 9,638,801,533.67
  5. Step 5: Solve for x
    x = 9,638,801,533.67/106,129.62
  6. Step 6: Final answer
    x = 90,821.03

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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.