Home / 120,338.69-180,528.53-60,395.75

Finding the Fourth Proportional to 120,338.69, 180,528.53 and 60,395.75

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Solution

The fourth proportional to 120,338.69, 180,528.53 and 60,395.75 is: 90,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,338.69 : 180,528.53 = 60,395.75 : x
  2. Step 2: Convert to fraction form
    120,338.69/180,528.53 = 60,395.75/x
  3. Step 3: Cross multiply
    120,338.69x = 180,528.53 × 60,395.75
  4. Step 4: Simplify right side
    120,338.69x = 10,903,156,568.06
  5. Step 5: Solve for x
    x = 10,903,156,568.06/120,338.69
  6. Step 6: Final answer
    x = 90,603.92

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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.