Home / 130,207.91-179,690.30-72,845.33

Finding the Fourth Proportional to 130,207.91, 179,690.30 and 72,845.33

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Solution

The fourth proportional to 130,207.91, 179,690.30 and 72,845.33 is: 100,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,207.91 : 179,690.30 = 72,845.33 : x
  2. Step 2: Convert to fraction form
    130,207.91/179,690.30 = 72,845.33/x
  3. Step 3: Cross multiply
    130,207.91x = 179,690.30 × 72,845.33
  4. Step 4: Simplify right side
    130,207.91x = 13,089,598,211.79
  5. Step 5: Solve for x
    x = 13,089,598,211.79/130,207.91
  6. Step 6: Final answer
    x = 100,528.44

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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.