Home / 100,223.55-138,302.58-54,892.50

Finding the Fourth Proportional to 100,223.55, 138,302.58 and 54,892.50

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Solution

The fourth proportional to 100,223.55, 138,302.58 and 54,892.50 is: 75,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,223.55 : 138,302.58 = 54,892.50 : x
  2. Step 2: Convert to fraction form
    100,223.55/138,302.58 = 54,892.50/x
  3. Step 3: Cross multiply
    100,223.55x = 138,302.58 × 54,892.50
  4. Step 4: Simplify right side
    100,223.55x = 7,591,774,372.65
  5. Step 5: Solve for x
    x = 7,591,774,372.65/100,223.55
  6. Step 6: Final answer
    x = 75,748.41

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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.