Home / 130,458.82-180,036.09-73,102.42

Finding the Fourth Proportional to 130,458.82, 180,036.09 and 73,102.42

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Solution

The fourth proportional to 130,458.82, 180,036.09 and 73,102.42 is: 100,882.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,458.82 : 180,036.09 = 73,102.42 : x
  2. Step 2: Convert to fraction form
    130,458.82/180,036.09 = 73,102.42/x
  3. Step 3: Cross multiply
    130,458.82x = 180,036.09 × 73,102.42
  4. Step 4: Simplify right side
    130,458.82x = 13,161,073,866.34
  5. Step 5: Solve for x
    x = 13,161,073,866.34/130,458.82
  6. Step 6: Final answer
    x = 100,882.97

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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.