Home / 142,214.13-213,383.43-67,387.68

Finding the Fourth Proportional to 142,214.13, 213,383.43 and 67,387.68

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Solution

The fourth proportional to 142,214.13, 213,383.43 and 67,387.68 is: 101,111.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,214.13 : 213,383.43 = 67,387.68 : x
  2. Step 2: Convert to fraction form
    142,214.13/213,383.43 = 67,387.68/x
  3. Step 3: Cross multiply
    142,214.13x = 213,383.43 × 67,387.68
  4. Step 4: Simplify right side
    142,214.13x = 14,379,414,298.14
  5. Step 5: Solve for x
    x = 14,379,414,298.14/142,214.13
  6. Step 6: Final answer
    x = 101,111.01

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1.5x scale

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.