Home / 130,496.43-180,097.71-73,145.49

Finding the Fourth Proportional to 130,496.43, 180,097.71 and 73,145.49

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Solution

The fourth proportional to 130,496.43, 180,097.71 and 73,145.49 is: 100,947.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,496.43 : 180,097.71 = 73,145.49 : x
  2. Step 2: Convert to fraction form
    130,496.43/180,097.71 = 73,145.49/x
  3. Step 3: Cross multiply
    130,496.43x = 180,097.71 × 73,145.49
  4. Step 4: Simplify right side
    130,496.43x = 13,173,335,245.83
  5. Step 5: Solve for x
    x = 13,173,335,245.83/130,496.43
  6. Step 6: Final answer
    x = 100,947.86

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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.