Home / 187,236.78-258,323.67-106,607.28

Finding the Fourth Proportional to 187,236.78, 258,323.67 and 106,607.28

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Solution

The fourth proportional to 187,236.78, 258,323.67 and 106,607.28 is: 147,082.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,236.78 : 258,323.67 = 106,607.28 : x
  2. Step 2: Convert to fraction form
    187,236.78/258,323.67 = 106,607.28/x
  3. Step 3: Cross multiply
    187,236.78x = 258,323.67 × 106,607.28
  4. Step 4: Simplify right side
    187,236.78x = 27,539,183,818.32
  5. Step 5: Solve for x
    x = 27,539,183,818.32/187,236.78
  6. Step 6: Final answer
    x = 147,082.13

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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.