Home / 186,968.14-280,033.95-86,978.50

Finding the Fourth Proportional to 186,968.14, 280,033.95 and 86,978.50

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Solution

The fourth proportional to 186,968.14, 280,033.95 and 86,978.50 is: 130,273.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,968.14 : 280,033.95 = 86,978.50 : x
  2. Step 2: Convert to fraction form
    186,968.14/280,033.95 = 86,978.50/x
  3. Step 3: Cross multiply
    186,968.14x = 280,033.95 × 86,978.50
  4. Step 4: Simplify right side
    186,968.14x = 24,356,932,920.08
  5. Step 5: Solve for x
    x = 24,356,932,920.08/186,968.14
  6. Step 6: Final answer
    x = 130,273.17

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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.