Home / 187,165.20-258,317.10-119,211.30

Finding the Fourth Proportional to 187,165.20, 258,317.10 and 119,211.30

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Solution

The fourth proportional to 187,165.20, 258,317.10 and 119,211.30 is: 164,530.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,165.20 : 258,317.10 = 119,211.30 : x
  2. Step 2: Convert to fraction form
    187,165.20/258,317.10 = 119,211.30/x
  3. Step 3: Cross multiply
    187,165.20x = 258,317.10 × 119,211.30
  4. Step 4: Simplify right side
    187,165.20x = 30,794,317,303.23
  5. Step 5: Solve for x
    x = 30,794,317,303.23/187,165.20
  6. Step 6: Final answer
    x = 164,530.14

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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.