Home / 119,120.24-164,391.90-65,404.64

Finding the Fourth Proportional to 119,120.24, 164,391.90 and 65,404.64

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Solution

The fourth proportional to 119,120.24, 164,391.90 and 65,404.64 is: 90,261.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,120.24 : 164,391.90 = 65,404.64 : x
  2. Step 2: Convert to fraction form
    119,120.24/164,391.90 = 65,404.64/x
  3. Step 3: Cross multiply
    119,120.24x = 164,391.90 × 65,404.64
  4. Step 4: Simplify right side
    119,120.24x = 10,751,993,038.42
  5. Step 5: Solve for x
    x = 10,751,993,038.42/119,120.24
  6. Step 6: Final answer
    x = 90,261.68

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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.