Home / 138,235.20-190,666.30-92,271.66

Finding the Fourth Proportional to 138,235.20, 190,666.30 and 92,271.66

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Solution

The fourth proportional to 138,235.20, 190,666.30 and 92,271.66 is: 127,269.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,235.20 : 190,666.30 = 92,271.66 : x
  2. Step 2: Convert to fraction form
    138,235.20/190,666.30 = 92,271.66/x
  3. Step 3: Cross multiply
    138,235.20x = 190,666.30 × 92,271.66
  4. Step 4: Simplify right side
    138,235.20x = 17,593,096,007.06
  5. Step 5: Solve for x
    x = 17,593,096,007.06/138,235.20
  6. Step 6: Final answer
    x = 127,269.29

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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.