Home / 166,988.57-230,749.38-121,587.48

Finding the Fourth Proportional to 166,988.57, 230,749.38 and 121,587.48

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Solution

The fourth proportional to 166,988.57, 230,749.38 and 121,587.48 is: 168,012.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,988.57 : 230,749.38 = 121,587.48 : x
  2. Step 2: Convert to fraction form
    166,988.57/230,749.38 = 121,587.48/x
  3. Step 3: Cross multiply
    166,988.57x = 230,749.38 × 121,587.48
  4. Step 4: Simplify right side
    166,988.57x = 28,056,235,625.76
  5. Step 5: Solve for x
    x = 28,056,235,625.76/166,988.57
  6. Step 6: Final answer
    x = 168,012.92

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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.