Home / 122,136.52-183,207.12-80,283.76

Finding the Fourth Proportional to 122,136.52, 183,207.12 and 80,283.76

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Solution

The fourth proportional to 122,136.52, 183,207.12 and 80,283.76 is: 120,427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,136.52 : 183,207.12 = 80,283.76 : x
  2. Step 2: Convert to fraction form
    122,136.52/183,207.12 = 80,283.76/x
  3. Step 3: Cross multiply
    122,136.52x = 183,207.12 × 80,283.76
  4. Step 4: Simplify right side
    122,136.52x = 14,708,556,452.37
  5. Step 5: Solve for x
    x = 14,708,556,452.37/122,136.52
  6. Step 6: Final answer
    x = 120,427.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.