Home / 122,664.65-169,252.37-71,667.53

Finding the Fourth Proportional to 122,664.65, 169,252.37 and 71,667.53

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Solution

The fourth proportional to 122,664.65, 169,252.37 and 71,667.53 is: 98,886.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,664.65 : 169,252.37 = 71,667.53 : x
  2. Step 2: Convert to fraction form
    122,664.65/169,252.37 = 71,667.53/x
  3. Step 3: Cross multiply
    122,664.65x = 169,252.37 × 71,667.53
  4. Step 4: Simplify right side
    122,664.65x = 12,129,898,099.95
  5. Step 5: Solve for x
    x = 12,129,898,099.95/122,664.65
  6. Step 6: Final answer
    x = 98,886.67

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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.