Home / 122,786.89-169,455.75-69,068.70

Finding the Fourth Proportional to 122,786.89, 169,455.75 and 69,068.70

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Solution

The fourth proportional to 122,786.89, 169,455.75 and 69,068.70 is: 95,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,786.89 : 169,455.75 = 69,068.70 : x
  2. Step 2: Convert to fraction form
    122,786.89/169,455.75 = 69,068.70/x
  3. Step 3: Cross multiply
    122,786.89x = 169,455.75 × 69,068.70
  4. Step 4: Simplify right side
    122,786.89x = 11,704,088,101.02
  5. Step 5: Solve for x
    x = 11,704,088,101.02/122,786.89
  6. Step 6: Final answer
    x = 95,320.34

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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.