Home / 100,290.24-138,345.60-63,924.16

Finding the Fourth Proportional to 100,290.24, 138,345.60 and 63,924.16

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Solution

The fourth proportional to 100,290.24, 138,345.60 and 63,924.16 is: 88,180.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,290.24 : 138,345.60 = 63,924.16 : x
  2. Step 2: Convert to fraction form
    100,290.24/138,345.60 = 63,924.16/x
  3. Step 3: Cross multiply
    100,290.24x = 138,345.60 × 63,924.16
  4. Step 4: Simplify right side
    100,290.24x = 8,843,626,269.70
  5. Step 5: Solve for x
    x = 8,843,626,269.70/100,290.24
  6. Step 6: Final answer
    x = 88,180.33

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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.