Home / 142,688.55-214,034.91-67,816.34

Finding the Fourth Proportional to 142,688.55, 214,034.91 and 67,816.34

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Solution

The fourth proportional to 142,688.55, 214,034.91 and 67,816.34 is: 101,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,688.55 : 214,034.91 = 67,816.34 : x
  2. Step 2: Convert to fraction form
    142,688.55/214,034.91 = 67,816.34/x
  3. Step 3: Cross multiply
    142,688.55x = 214,034.91 × 67,816.34
  4. Step 4: Simplify right side
    142,688.55x = 14,515,063,158.25
  5. Step 5: Solve for x
    x = 14,515,063,158.25/142,688.55
  6. Step 6: Final answer
    x = 101,725.49

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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.