Home / 89,700.33-123,800.07-68,154.75

Finding the Fourth Proportional to 89,700.33, 123,800.07 and 68,154.75

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Solution

The fourth proportional to 89,700.33, 123,800.07 and 68,154.75 is: 94,063.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,700.33 : 123,800.07 = 68,154.75 : x
  2. Step 2: Convert to fraction form
    89,700.33/123,800.07 = 68,154.75/x
  3. Step 3: Cross multiply
    89,700.33x = 123,800.07 × 68,154.75
  4. Step 4: Simplify right side
    89,700.33x = 8,437,562,820.83
  5. Step 5: Solve for x
    x = 8,437,562,820.83/89,700.33
  6. Step 6: Final answer
    x = 94,063.90

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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.