Home / 130,514.88-180,136.44-85,200.24

Finding the Fourth Proportional to 130,514.88, 180,136.44 and 85,200.24

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Solution

The fourth proportional to 130,514.88, 180,136.44 and 85,200.24 is: 117,593.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,514.88 : 180,136.44 = 85,200.24 : x
  2. Step 2: Convert to fraction form
    130,514.88/180,136.44 = 85,200.24/x
  3. Step 3: Cross multiply
    130,514.88x = 180,136.44 × 85,200.24
  4. Step 4: Simplify right side
    130,514.88x = 15,347,667,920.75
  5. Step 5: Solve for x
    x = 15,347,667,920.75/130,514.88
  6. Step 6: Final answer
    x = 117,593.24

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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.