Home / 236,715.56-326,665.72-129,285.64

Finding the Fourth Proportional to 236,715.56, 326,665.72 and 129,285.64

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Solution

The fourth proportional to 236,715.56, 326,665.72 and 129,285.64 is: 178,413.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,715.56 : 326,665.72 = 129,285.64 : x
  2. Step 2: Convert to fraction form
    236,715.56/326,665.72 = 129,285.64/x
  3. Step 3: Cross multiply
    236,715.56x = 326,665.72 × 129,285.64
  4. Step 4: Simplify right side
    236,715.56x = 42,233,186,676.26
  5. Step 5: Solve for x
    x = 42,233,186,676.26/236,715.56
  6. Step 6: Final answer
    x = 178,413.23

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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.