Home / 122,114.63-168,575.91-81,854.69

Finding the Fourth Proportional to 122,114.63, 168,575.91 and 81,854.69

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Solution

The fourth proportional to 122,114.63, 168,575.91 and 81,854.69 is: 112,998.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,114.63 : 168,575.91 = 81,854.69 : x
  2. Step 2: Convert to fraction form
    122,114.63/168,575.91 = 81,854.69/x
  3. Step 3: Cross multiply
    122,114.63x = 168,575.91 × 81,854.69
  4. Step 4: Simplify right side
    122,114.63x = 13,798,728,969.00
  5. Step 5: Solve for x
    x = 13,798,728,969.00/122,114.63
  6. Step 6: Final answer
    x = 112,998.17

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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.