Home / 186,404.09-279,607.01-79,772.45

Finding the Fourth Proportional to 186,404.09, 279,607.01 and 79,772.45

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Solution

The fourth proportional to 186,404.09, 279,607.01 and 79,772.45 is: 119,659.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,404.09 : 279,607.01 = 79,772.45 : x
  2. Step 2: Convert to fraction form
    186,404.09/279,607.01 = 79,772.45/x
  3. Step 3: Cross multiply
    186,404.09x = 279,607.01 × 79,772.45
  4. Step 4: Simplify right side
    186,404.09x = 22,304,934,427.98
  5. Step 5: Solve for x
    x = 22,304,934,427.98/186,404.09
  6. Step 6: Final answer
    x = 119,659.04

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1.5x scale

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.