Home / 100,180.77-138,252.93-67,519.14

Finding the Fourth Proportional to 100,180.77, 138,252.93 and 67,519.14

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Solution

The fourth proportional to 100,180.77, 138,252.93 and 67,519.14 is: 93,178.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,180.77 : 138,252.93 = 67,519.14 : x
  2. Step 2: Convert to fraction form
    100,180.77/138,252.93 = 67,519.14/x
  3. Step 3: Cross multiply
    100,180.77x = 138,252.93 × 67,519.14
  4. Step 4: Simplify right side
    100,180.77x = 9,334,718,164.43
  5. Step 5: Solve for x
    x = 9,334,718,164.43/100,180.77
  6. Step 6: Final answer
    x = 93,178.75

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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.