Home / 103,748.58-154,920.47-91,004.04

Finding the Fourth Proportional to 103,748.58, 154,920.47 and 91,004.04

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Solution

The fourth proportional to 103,748.58, 154,920.47 and 91,004.04 is: 135,889.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,748.58 : 154,920.47 = 91,004.04 : x
  2. Step 2: Convert to fraction form
    103,748.58/154,920.47 = 91,004.04/x
  3. Step 3: Cross multiply
    103,748.58x = 154,920.47 × 91,004.04
  4. Step 4: Simplify right side
    103,748.58x = 14,098,388,193.68
  5. Step 5: Solve for x
    x = 14,098,388,193.68/103,748.58
  6. Step 6: Final answer
    x = 135,889.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.