Home / 122,141.05-168,557.57-81,827.35

Finding the Fourth Proportional to 122,141.05, 168,557.57 and 81,827.35

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Solution

The fourth proportional to 122,141.05, 168,557.57 and 81,827.35 is: 112,923.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,141.05 : 168,557.57 = 81,827.35 : x
  2. Step 2: Convert to fraction form
    122,141.05/168,557.57 = 81,827.35/x
  3. Step 3: Cross multiply
    122,141.05x = 168,557.57 × 81,827.35
  4. Step 4: Simplify right side
    122,141.05x = 13,792,618,866.40
  5. Step 5: Solve for x
    x = 13,792,618,866.40/122,141.05
  6. Step 6: Final answer
    x = 112,923.70

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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.