Home / 103,631.05-155,446.58-101,327.05

Finding the Fourth Proportional to 103,631.05, 155,446.58 and 101,327.05

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Solution

The fourth proportional to 103,631.05, 155,446.58 and 101,327.05 is: 151,990.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,631.05 : 155,446.58 = 101,327.05 : x
  2. Step 2: Convert to fraction form
    103,631.05/155,446.58 = 101,327.05/x
  3. Step 3: Cross multiply
    103,631.05x = 155,446.58 × 101,327.05
  4. Step 4: Simplify right side
    103,631.05x = 15,750,943,383.99
  5. Step 5: Solve for x
    x = 15,750,943,383.99/103,631.05
  6. Step 6: Final answer
    x = 151,990.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.