Home / 142,720.56-214,085.70-67,802.04

Finding the Fourth Proportional to 142,720.56, 214,085.70 and 67,802.04

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Solution

The fourth proportional to 142,720.56, 214,085.70 and 67,802.04 is: 101,705.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,720.56 : 214,085.70 = 67,802.04 : x
  2. Step 2: Convert to fraction form
    142,720.56/214,085.70 = 67,802.04/x
  3. Step 3: Cross multiply
    142,720.56x = 214,085.70 × 67,802.04
  4. Step 4: Simplify right side
    142,720.56x = 14,515,447,194.83
  5. Step 5: Solve for x
    x = 14,515,447,194.83/142,720.56
  6. Step 6: Final answer
    x = 101,705.37

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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.