Home / 186,355.78-279,505.02-102,157.66

Finding the Fourth Proportional to 186,355.78, 279,505.02 and 102,157.66

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Solution

The fourth proportional to 186,355.78, 279,505.02 and 102,157.66 is: 153,220.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,355.78 : 279,505.02 = 102,157.66 : x
  2. Step 2: Convert to fraction form
    186,355.78/279,505.02 = 102,157.66/x
  3. Step 3: Cross multiply
    186,355.78x = 279,505.02 × 102,157.66
  4. Step 4: Simplify right side
    186,355.78x = 28,553,578,801.45
  5. Step 5: Solve for x
    x = 28,553,578,801.45/186,355.78
  6. Step 6: Final answer
    x = 153,220.78

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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.