Home / 105,929.36-146,190.36-65,651.04

Finding the Fourth Proportional to 105,929.36, 146,190.36 and 65,651.04

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Solution

The fourth proportional to 105,929.36, 146,190.36 and 65,651.04 is: 90,603.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,929.36 : 146,190.36 = 65,651.04 : x
  2. Step 2: Convert to fraction form
    105,929.36/146,190.36 = 65,651.04/x
  3. Step 3: Cross multiply
    105,929.36x = 146,190.36 × 65,651.04
  4. Step 4: Simplify right side
    105,929.36x = 9,597,549,171.97
  5. Step 5: Solve for x
    x = 9,597,549,171.97/105,929.36
  6. Step 6: Final answer
    x = 90,603.30

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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.