Home / 186,754.56-279,518.40-142,140.48

Finding the Fourth Proportional to 186,754.56, 279,518.40 and 142,140.48

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Solution

The fourth proportional to 186,754.56, 279,518.40 and 142,140.48 is: 212,743.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,754.56 : 279,518.40 = 142,140.48 : x
  2. Step 2: Convert to fraction form
    186,754.56/279,518.40 = 142,140.48/x
  3. Step 3: Cross multiply
    186,754.56x = 279,518.40 × 142,140.48
  4. Step 4: Simplify right side
    186,754.56x = 39,730,879,544.83
  5. Step 5: Solve for x
    x = 39,730,879,544.83/186,754.56
  6. Step 6: Final answer
    x = 212,743.83

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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.