Home / 100,849.05-139,170.54-55,526.10

Finding the Fourth Proportional to 100,849.05, 139,170.54 and 55,526.10

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Solution

The fourth proportional to 100,849.05, 139,170.54 and 55,526.10 is: 76,625.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,849.05 : 139,170.54 = 55,526.10 : x
  2. Step 2: Convert to fraction form
    100,849.05/139,170.54 = 55,526.10/x
  3. Step 3: Cross multiply
    100,849.05x = 139,170.54 × 55,526.10
  4. Step 4: Simplify right side
    100,849.05x = 7,727,597,043.46
  5. Step 5: Solve for x
    x = 7,727,597,043.46/100,849.05
  6. Step 6: Final answer
    x = 76,625.39

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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.