Home / 122,281.12-168,676.26-76,887.16

Finding the Fourth Proportional to 122,281.12, 168,676.26 and 76,887.16

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Solution

The fourth proportional to 122,281.12, 168,676.26 and 76,887.16 is: 106,059.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,281.12 : 168,676.26 = 76,887.16 : x
  2. Step 2: Convert to fraction form
    122,281.12/168,676.26 = 76,887.16/x
  3. Step 3: Cross multiply
    122,281.12x = 168,676.26 × 76,887.16
  4. Step 4: Simplify right side
    122,281.12x = 12,969,038,590.82
  5. Step 5: Solve for x
    x = 12,969,038,590.82/122,281.12
  6. Step 6: Final answer
    x = 106,059.21

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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.