Home / 186,867.74-258,158.40-122,489.76

Finding the Fourth Proportional to 186,867.74, 258,158.40 and 122,489.76

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Solution

The fourth proportional to 186,867.74, 258,158.40 and 122,489.76 is: 169,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,867.74 : 258,158.40 = 122,489.76 : x
  2. Step 2: Convert to fraction form
    186,867.74/258,158.40 = 122,489.76/x
  3. Step 3: Cross multiply
    186,867.74x = 258,158.40 × 122,489.76
  4. Step 4: Simplify right side
    186,867.74x = 31,621,760,457.98
  5. Step 5: Solve for x
    x = 31,621,760,457.98/186,867.74
  6. Step 6: Final answer
    x = 169,220.01

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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.