Home / 130,960.90-180,727.32-74,372.68

Finding the Fourth Proportional to 130,960.90, 180,727.32 and 74,372.68

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Solution

The fourth proportional to 130,960.90, 180,727.32 and 74,372.68 is: 102,635.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,960.90 : 180,727.32 = 74,372.68 : x
  2. Step 2: Convert to fraction form
    130,960.90/180,727.32 = 74,372.68/x
  3. Step 3: Cross multiply
    130,960.90x = 180,727.32 × 74,372.68
  4. Step 4: Simplify right side
    130,960.90x = 13,441,175,137.62
  5. Step 5: Solve for x
    x = 13,441,175,137.62/130,960.90
  6. Step 6: Final answer
    x = 102,635.02

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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.