Home / 100,201.04-138,279.52-54,880.93

Finding the Fourth Proportional to 100,201.04, 138,279.52 and 54,880.93

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Solution

The fourth proportional to 100,201.04, 138,279.52 and 54,880.93 is: 75,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,201.04 : 138,279.52 = 54,880.93 : x
  2. Step 2: Convert to fraction form
    100,201.04/138,279.52 = 54,880.93/x
  3. Step 3: Cross multiply
    100,201.04x = 138,279.52 × 54,880.93
  4. Step 4: Simplify right side
    100,201.04x = 7,588,908,657.55
  5. Step 5: Solve for x
    x = 7,588,908,657.55/100,201.04
  6. Step 6: Final answer
    x = 75,736.83

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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.