Home / 109,778.67-151,602.21-93,769.83

Finding the Fourth Proportional to 109,778.67, 151,602.21 and 93,769.83

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Solution

The fourth proportional to 109,778.67, 151,602.21 and 93,769.83 is: 129,494.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,778.67 : 151,602.21 = 93,769.83 : x
  2. Step 2: Convert to fraction form
    109,778.67/151,602.21 = 93,769.83/x
  3. Step 3: Cross multiply
    109,778.67x = 151,602.21 × 93,769.83
  4. Step 4: Simplify right side
    109,778.67x = 14,215,713,459.32
  5. Step 5: Solve for x
    x = 14,215,713,459.32/109,778.67
  6. Step 6: Final answer
    x = 129,494.31

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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.