Home / 100,246.60-138,334.44-54,915.58

Finding the Fourth Proportional to 100,246.60, 138,334.44 and 54,915.58

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Solution

The fourth proportional to 100,246.60, 138,334.44 and 54,915.58 is: 75,780.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,246.60 : 138,334.44 = 54,915.58 : x
  2. Step 2: Convert to fraction form
    100,246.60/138,334.44 = 54,915.58/x
  3. Step 3: Cross multiply
    100,246.60x = 138,334.44 × 54,915.58
  4. Step 4: Simplify right side
    100,246.60x = 7,596,716,006.58
  5. Step 5: Solve for x
    x = 7,596,716,006.58/100,246.60
  6. Step 6: Final answer
    x = 75,780.29

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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.