Home / 177,985.70-245,620.04-100,477.64

Finding the Fourth Proportional to 177,985.70, 245,620.04 and 100,477.64

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Solution

The fourth proportional to 177,985.70, 245,620.04 and 100,477.64 is: 138,659.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,985.70 : 245,620.04 = 100,477.64 : x
  2. Step 2: Convert to fraction form
    177,985.70/245,620.04 = 100,477.64/x
  3. Step 3: Cross multiply
    177,985.70x = 245,620.04 × 100,477.64
  4. Step 4: Simplify right side
    177,985.70x = 24,679,322,067.57
  5. Step 5: Solve for x
    x = 24,679,322,067.57/177,985.70
  6. Step 6: Final answer
    x = 138,659.02

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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.