Home / 121,389.10-167,532.05-69,722.37

Finding the Fourth Proportional to 121,389.10, 167,532.05 and 69,722.37

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Solution

The fourth proportional to 121,389.10, 167,532.05 and 69,722.37 is: 96,225.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,389.10 : 167,532.05 = 69,722.37 : x
  2. Step 2: Convert to fraction form
    121,389.10/167,532.05 = 69,722.37/x
  3. Step 3: Cross multiply
    121,389.10x = 167,532.05 × 69,722.37
  4. Step 4: Simplify right side
    121,389.10x = 11,680,731,751.26
  5. Step 5: Solve for x
    x = 11,680,731,751.26/121,389.10
  6. Step 6: Final answer
    x = 96,225.54

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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.