Home / 186,476.34-257,370.66-109,990.74

Finding the Fourth Proportional to 186,476.34, 257,370.66 and 109,990.74

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Solution

The fourth proportional to 186,476.34, 257,370.66 and 109,990.74 is: 151,806.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,476.34 : 257,370.66 = 109,990.74 : x
  2. Step 2: Convert to fraction form
    186,476.34/257,370.66 = 109,990.74/x
  3. Step 3: Cross multiply
    186,476.34x = 257,370.66 × 109,990.74
  4. Step 4: Simplify right side
    186,476.34x = 28,308,389,347.69
  5. Step 5: Solve for x
    x = 28,308,389,347.69/186,476.34
  6. Step 6: Final answer
    x = 151,806.87

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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.