Home / 116,787.50-161,166.93-66,486.50

Finding the Fourth Proportional to 116,787.50, 161,166.93 and 66,486.50

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Solution

The fourth proportional to 116,787.50, 161,166.93 and 66,486.50 is: 91,751.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,787.50 : 161,166.93 = 66,486.50 : x
  2. Step 2: Convert to fraction form
    116,787.50/161,166.93 = 66,486.50/x
  3. Step 3: Cross multiply
    116,787.50x = 161,166.93 × 66,486.50
  4. Step 4: Simplify right side
    116,787.50x = 10,715,425,091.45
  5. Step 5: Solve for x
    x = 10,715,425,091.45/116,787.50
  6. Step 6: Final answer
    x = 91,751.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.