Home / 130,505.70-180,110.48-73,154.73

Finding the Fourth Proportional to 130,505.70, 180,110.48 and 73,154.73

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Solution

The fourth proportional to 130,505.70, 180,110.48 and 73,154.73 is: 100,960.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,505.70 : 180,110.48 = 73,154.73 : x
  2. Step 2: Convert to fraction form
    130,505.70/180,110.48 = 73,154.73/x
  3. Step 3: Cross multiply
    130,505.70x = 180,110.48 × 73,154.73
  4. Step 4: Simplify right side
    130,505.70x = 13,175,933,168.80
  5. Step 5: Solve for x
    x = 13,175,933,168.80/130,505.70
  6. Step 6: Final answer
    x = 100,960.60

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1.5x scale

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.