Home / 186,769.60-279,984.30-68,412.40

Finding the Fourth Proportional to 186,769.60, 279,984.30 and 68,412.40

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Solution

The fourth proportional to 186,769.60, 279,984.30 and 68,412.40 is: 102,556.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,769.60 : 279,984.30 = 68,412.40 : x
  2. Step 2: Convert to fraction form
    186,769.60/279,984.30 = 68,412.40/x
  3. Step 3: Cross multiply
    186,769.60x = 279,984.30 × 68,412.40
  4. Step 4: Simplify right side
    186,769.60x = 19,154,397,925.32
  5. Step 5: Solve for x
    x = 19,154,397,925.32/186,769.60
  6. Step 6: Final answer
    x = 102,556.29

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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.