Home / 83,455.08-124,438.21-74,182.20

Finding the Fourth Proportional to 83,455.08, 124,438.21 and 74,182.20

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Solution

The fourth proportional to 83,455.08, 124,438.21 and 74,182.20 is: 110,611.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,455.08 : 124,438.21 = 74,182.20 : x
  2. Step 2: Convert to fraction form
    83,455.08/124,438.21 = 74,182.20/x
  3. Step 3: Cross multiply
    83,455.08x = 124,438.21 × 74,182.20
  4. Step 4: Simplify right side
    83,455.08x = 9,231,100,181.86
  5. Step 5: Solve for x
    x = 9,231,100,181.86/83,455.08
  6. Step 6: Final answer
    x = 110,611.60

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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.