Home / 130,540.46-180,053.64-111,109.70

Finding the Fourth Proportional to 130,540.46, 180,053.64 and 111,109.70

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Solution

The fourth proportional to 130,540.46, 180,053.64 and 111,109.70 is: 153,252.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,540.46 : 180,053.64 = 111,109.70 : x
  2. Step 2: Convert to fraction form
    130,540.46/180,053.64 = 111,109.70/x
  3. Step 3: Cross multiply
    130,540.46x = 180,053.64 × 111,109.70
  4. Step 4: Simplify right side
    130,540.46x = 20,005,705,924.31
  5. Step 5: Solve for x
    x = 20,005,705,924.31/130,540.46
  6. Step 6: Final answer
    x = 153,252.91

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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.