Home / 113,069.04-169,403.98-68,605.50

Finding the Fourth Proportional to 113,069.04, 169,403.98 and 68,605.50

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Solution

The fourth proportional to 113,069.04, 169,403.98 and 68,605.50 is: 102,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,069.04 : 169,403.98 = 68,605.50 : x
  2. Step 2: Convert to fraction form
    113,069.04/169,403.98 = 68,605.50/x
  3. Step 3: Cross multiply
    113,069.04x = 169,403.98 × 68,605.50
  4. Step 4: Simplify right side
    113,069.04x = 11,622,044,749.89
  5. Step 5: Solve for x
    x = 11,622,044,749.89/113,069.04
  6. Step 6: Final answer
    x = 102,787.15

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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.