Home / 187,580.16-258,875.42-106,989.20

Finding the Fourth Proportional to 187,580.16, 258,875.42 and 106,989.20

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Solution

The fourth proportional to 187,580.16, 258,875.42 and 106,989.20 is: 147,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,580.16 : 258,875.42 = 106,989.20 : x
  2. Step 2: Convert to fraction form
    187,580.16/258,875.42 = 106,989.20/x
  3. Step 3: Cross multiply
    187,580.16x = 258,875.42 × 106,989.20
  4. Step 4: Simplify right side
    187,580.16x = 27,696,874,085.46
  5. Step 5: Solve for x
    x = 27,696,874,085.46/187,580.16
  6. Step 6: Final answer
    x = 147,653.54

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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.