Home / 122,853.51-169,601.85-82,777.95

Finding the Fourth Proportional to 122,853.51, 169,601.85 and 82,777.95

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Solution

The fourth proportional to 122,853.51, 169,601.85 and 82,777.95 is: 114,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,853.51 : 169,601.85 = 82,777.95 : x
  2. Step 2: Convert to fraction form
    122,853.51/169,601.85 = 82,777.95/x
  3. Step 3: Cross multiply
    122,853.51x = 169,601.85 × 82,777.95
  4. Step 4: Simplify right side
    122,853.51x = 14,039,293,459.21
  5. Step 5: Solve for x
    x = 14,039,293,459.21/122,853.51
  6. Step 6: Final answer
    x = 114,276.70

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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.