Home / 125,756.22-173,455.70-85,399.92

Finding the Fourth Proportional to 125,756.22, 173,455.70 and 85,399.92

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Solution

The fourth proportional to 125,756.22, 173,455.70 and 85,399.92 is: 117,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,756.22 : 173,455.70 = 85,399.92 : x
  2. Step 2: Convert to fraction form
    125,756.22/173,455.70 = 85,399.92/x
  3. Step 3: Cross multiply
    125,756.22x = 173,455.70 × 85,399.92
  4. Step 4: Simplify right side
    125,756.22x = 14,813,102,903.54
  5. Step 5: Solve for x
    x = 14,813,102,903.54/125,756.22
  6. Step 6: Final answer
    x = 117,792.21

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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.