Home / 189,705.04-261,847.49-125,221.34

Finding the Fourth Proportional to 189,705.04, 261,847.49 and 125,221.34

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Solution

The fourth proportional to 189,705.04, 261,847.49 and 125,221.34 is: 172,841.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,705.04 : 261,847.49 = 125,221.34 : x
  2. Step 2: Convert to fraction form
    189,705.04/261,847.49 = 125,221.34/x
  3. Step 3: Cross multiply
    189,705.04x = 261,847.49 × 125,221.34
  4. Step 4: Simplify right side
    189,705.04x = 32,788,893,601.95
  5. Step 5: Solve for x
    x = 32,788,893,601.95/189,705.04
  6. Step 6: Final answer
    x = 172,841.45

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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.