Home / 120,333.78-180,566.28-53,771.22

Finding the Fourth Proportional to 120,333.78, 180,566.28 and 53,771.22

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Solution

The fourth proportional to 120,333.78, 180,566.28 and 53,771.22 is: 80,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,333.78 : 180,566.28 = 53,771.22 : x
  2. Step 2: Convert to fraction form
    120,333.78/180,566.28 = 53,771.22/x
  3. Step 3: Cross multiply
    120,333.78x = 180,566.28 × 53,771.22
  4. Step 4: Simplify right side
    120,333.78x = 9,709,269,166.46
  5. Step 5: Solve for x
    x = 9,709,269,166.46/120,333.78
  6. Step 6: Final answer
    x = 80,686.15

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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.