Home / 105,945.77-146,144.05-63,479.70

Finding the Fourth Proportional to 105,945.77, 146,144.05 and 63,479.70

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Solution

The fourth proportional to 105,945.77, 146,144.05 and 63,479.70 is: 87,565.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,945.77 : 146,144.05 = 63,479.70 : x
  2. Step 2: Convert to fraction form
    105,945.77/146,144.05 = 63,479.70/x
  3. Step 3: Cross multiply
    105,945.77x = 146,144.05 × 63,479.70
  4. Step 4: Simplify right side
    105,945.77x = 9,277,180,292.09
  5. Step 5: Solve for x
    x = 9,277,180,292.09/105,945.77
  6. Step 6: Final answer
    x = 87,565.37

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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.