Home / 122,583.60-169,155-68,864.40

Finding the Fourth Proportional to 122,583.60, 169,155 and 68,864.40

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Solution

The fourth proportional to 122,583.60, 169,155 and 68,864.40 is: 95,027.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,583.60 : 169,155 = 68,864.40 : x
  2. Step 2: Convert to fraction form
    122,583.60/169,155 = 68,864.40/x
  3. Step 3: Cross multiply
    122,583.60x = 169,155 × 68,864.40
  4. Step 4: Simplify right side
    122,583.60x = 11,648,757,582.00
  5. Step 5: Solve for x
    x = 11,648,757,582.00/122,583.60
  6. Step 6: Final answer
    x = 95,027.05

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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.