Home / 114,905.89-172,201.65-86,802.94

Finding the Fourth Proportional to 114,905.89, 172,201.65 and 86,802.94

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Solution

The fourth proportional to 114,905.89, 172,201.65 and 86,802.94 is: 130,085.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,905.89 : 172,201.65 = 86,802.94 : x
  2. Step 2: Convert to fraction form
    114,905.89/172,201.65 = 86,802.94/x
  3. Step 3: Cross multiply
    114,905.89x = 172,201.65 × 86,802.94
  4. Step 4: Simplify right side
    114,905.89x = 14,947,609,382.59
  5. Step 5: Solve for x
    x = 14,947,609,382.59/114,905.89
  6. Step 6: Final answer
    x = 130,085.67

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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.