Home / 186,231.74-257,005.62-105,662.66

Finding the Fourth Proportional to 186,231.74, 257,005.62 and 105,662.66

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Solution

The fourth proportional to 186,231.74, 257,005.62 and 105,662.66 is: 145,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,231.74 : 257,005.62 = 105,662.66 : x
  2. Step 2: Convert to fraction form
    186,231.74/257,005.62 = 105,662.66/x
  3. Step 3: Cross multiply
    186,231.74x = 257,005.62 × 105,662.66
  4. Step 4: Simplify right side
    186,231.74x = 27,155,897,444.15
  5. Step 5: Solve for x
    x = 27,155,897,444.15/186,231.74
  6. Step 6: Final answer
    x = 145,817.77

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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.