Home / 158,005.56-217,917.77-112,669.05

Finding the Fourth Proportional to 158,005.56, 217,917.77 and 112,669.05

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Solution

The fourth proportional to 158,005.56, 217,917.77 and 112,669.05 is: 155,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,005.56 : 217,917.77 = 112,669.05 : x
  2. Step 2: Convert to fraction form
    158,005.56/217,917.77 = 112,669.05/x
  3. Step 3: Cross multiply
    158,005.56x = 217,917.77 × 112,669.05
  4. Step 4: Simplify right side
    158,005.56x = 24,552,587,560.67
  5. Step 5: Solve for x
    x = 24,552,587,560.67/158,005.56
  6. Step 6: Final answer
    x = 155,390.66

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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.