Home / 142,905.80-214,303.78-67,968.20

Finding the Fourth Proportional to 142,905.80, 214,303.78 and 67,968.20

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Solution

The fourth proportional to 142,905.80, 214,303.78 and 67,968.20 is: 101,926.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,905.80 : 214,303.78 = 67,968.20 : x
  2. Step 2: Convert to fraction form
    142,905.80/214,303.78 = 67,968.20/x
  3. Step 3: Cross multiply
    142,905.80x = 214,303.78 × 67,968.20
  4. Step 4: Simplify right side
    142,905.80x = 14,565,842,179.80
  5. Step 5: Solve for x
    x = 14,565,842,179.80/142,905.80
  6. Step 6: Final answer
    x = 101,926.18

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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.