Home / 186,218.19-278,544.42-156,978

Finding the Fourth Proportional to 186,218.19, 278,544.42 and 156,978

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Solution

The fourth proportional to 186,218.19, 278,544.42 and 156,978 is: 234,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,218.19 : 278,544.42 = 156,978 : x
  2. Step 2: Convert to fraction form
    186,218.19/278,544.42 = 156,978/x
  3. Step 3: Cross multiply
    186,218.19x = 278,544.42 × 156,978
  4. Step 4: Simplify right side
    186,218.19x = 43,725,345,962.76
  5. Step 5: Solve for x
    x = 43,725,345,962.76/186,218.19
  6. Step 6: Final answer
    x = 234,807.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.