Home / 122,676.07-169,421.49-84,534.79

Finding the Fourth Proportional to 122,676.07, 169,421.49 and 84,534.79

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Solution

The fourth proportional to 122,676.07, 169,421.49 and 84,534.79 is: 116,746.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,676.07 : 169,421.49 = 84,534.79 : x
  2. Step 2: Convert to fraction form
    122,676.07/169,421.49 = 84,534.79/x
  3. Step 3: Cross multiply
    122,676.07x = 169,421.49 × 84,534.79
  4. Step 4: Simplify right side
    122,676.07x = 14,322,010,078.64
  5. Step 5: Solve for x
    x = 14,322,010,078.64/122,676.07
  6. Step 6: Final answer
    x = 116,746.57

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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.