Home / 120,176.97-180,307.06-45,318.59

Finding the Fourth Proportional to 120,176.97, 180,307.06 and 45,318.59

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Solution

The fourth proportional to 120,176.97, 180,307.06 and 45,318.59 is: 67,993.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,176.97 : 180,307.06 = 45,318.59 : x
  2. Step 2: Convert to fraction form
    120,176.97/180,307.06 = 45,318.59/x
  3. Step 3: Cross multiply
    120,176.97x = 180,307.06 × 45,318.59
  4. Step 4: Simplify right side
    120,176.97x = 8,171,261,642.48
  5. Step 5: Solve for x
    x = 8,171,261,642.48/120,176.97
  6. Step 6: Final answer
    x = 67,993.58

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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.