Home / 122,840.32-169,529.64-69,122.20

Finding the Fourth Proportional to 122,840.32, 169,529.64 and 69,122.20

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Solution

The fourth proportional to 122,840.32, 169,529.64 and 69,122.20 is: 95,394.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,840.32 : 169,529.64 = 69,122.20 : x
  2. Step 2: Convert to fraction form
    122,840.32/169,529.64 = 69,122.20/x
  3. Step 3: Cross multiply
    122,840.32x = 169,529.64 × 69,122.20
  4. Step 4: Simplify right side
    122,840.32x = 11,718,261,682.01
  5. Step 5: Solve for x
    x = 11,718,261,682.01/122,840.32
  6. Step 6: Final answer
    x = 95,394.26

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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.