Home / 130,505.53-180,110.34-73,154.56

Finding the Fourth Proportional to 130,505.53, 180,110.34 and 73,154.56

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Solution

The fourth proportional to 130,505.53, 180,110.34 and 73,154.56 is: 100,960.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,505.53 : 180,110.34 = 73,154.56 : x
  2. Step 2: Convert to fraction form
    130,505.53/180,110.34 = 73,154.56/x
  3. Step 3: Cross multiply
    130,505.53x = 180,110.34 × 73,154.56
  4. Step 4: Simplify right side
    130,505.53x = 13,175,892,674.15
  5. Step 5: Solve for x
    x = 13,175,892,674.15/130,505.53
  6. Step 6: Final answer
    x = 100,960.42

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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.