Home / 100,177.25-138,248.93-55,465.25

Finding the Fourth Proportional to 100,177.25, 138,248.93 and 55,465.25

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Solution

The fourth proportional to 100,177.25, 138,248.93 and 55,465.25 is: 76,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,177.25 : 138,248.93 = 55,465.25 : x
  2. Step 2: Convert to fraction form
    100,177.25/138,248.93 = 55,465.25/x
  3. Step 3: Cross multiply
    100,177.25x = 138,248.93 × 55,465.25
  4. Step 4: Simplify right side
    100,177.25x = 7,668,011,464.68
  5. Step 5: Solve for x
    x = 7,668,011,464.68/100,177.25
  6. Step 6: Final answer
    x = 76,544.44

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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.