Home / 122,313.17-168,720.49-76,919.15

Finding the Fourth Proportional to 122,313.17, 168,720.49 and 76,919.15

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Solution

The fourth proportional to 122,313.17, 168,720.49 and 76,919.15 is: 106,103.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,313.17 : 168,720.49 = 76,919.15 : x
  2. Step 2: Convert to fraction form
    122,313.17/168,720.49 = 76,919.15/x
  3. Step 3: Cross multiply
    122,313.17x = 168,720.49 × 76,919.15
  4. Step 4: Simplify right side
    122,313.17x = 12,977,836,678.38
  5. Step 5: Solve for x
    x = 12,977,836,678.38/122,313.17
  6. Step 6: Final answer
    x = 106,103.35

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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.