Home / 186,043.80-279,102.15-79,427.55

Finding the Fourth Proportional to 186,043.80, 279,102.15 and 79,427.55

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Solution

The fourth proportional to 186,043.80, 279,102.15 and 79,427.55 is: 119,156.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,043.80 : 279,102.15 = 79,427.55 : x
  2. Step 2: Convert to fraction form
    186,043.80/279,102.15 = 79,427.55/x
  3. Step 3: Cross multiply
    186,043.80x = 279,102.15 × 79,427.55
  4. Step 4: Simplify right side
    186,043.80x = 22,168,399,974.23
  5. Step 5: Solve for x
    x = 22,168,399,974.23/186,043.80
  6. Step 6: Final answer
    x = 119,156.89

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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.