Home / 123,920.28-185,878.80-30,426.84

Finding the Fourth Proportional to 123,920.28, 185,878.80 and 30,426.84

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Solution

The fourth proportional to 123,920.28, 185,878.80 and 30,426.84 is: 45,639.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,920.28 : 185,878.80 = 30,426.84 : x
  2. Step 2: Convert to fraction form
    123,920.28/185,878.80 = 30,426.84/x
  3. Step 3: Cross multiply
    123,920.28x = 185,878.80 × 30,426.84
  4. Step 4: Simplify right side
    123,920.28x = 5,655,704,506.99
  5. Step 5: Solve for x
    x = 5,655,704,506.99/123,920.28
  6. Step 6: Final answer
    x = 45,639.86

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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.