Home / 186,320.62-257,423.07-129,983.50

Finding the Fourth Proportional to 186,320.62, 257,423.07 and 129,983.50

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Solution

The fourth proportional to 186,320.62, 257,423.07 and 129,983.50 is: 179,586.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,320.62 : 257,423.07 = 129,983.50 : x
  2. Step 2: Convert to fraction form
    186,320.62/257,423.07 = 129,983.50/x
  3. Step 3: Cross multiply
    186,320.62x = 257,423.07 × 129,983.50
  4. Step 4: Simplify right side
    186,320.62x = 33,460,751,619.35
  5. Step 5: Solve for x
    x = 33,460,751,619.35/186,320.62
  6. Step 6: Final answer
    x = 179,586.95

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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.