Home / 142,291.77-213,429.96-72,169.26

Finding the Fourth Proportional to 142,291.77, 213,429.96 and 72,169.26

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Solution

The fourth proportional to 142,291.77, 213,429.96 and 72,169.26 is: 108,249.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,291.77 : 213,429.96 = 72,169.26 : x
  2. Step 2: Convert to fraction form
    142,291.77/213,429.96 = 72,169.26/x
  3. Step 3: Cross multiply
    142,291.77x = 213,429.96 × 72,169.26
  4. Step 4: Simplify right side
    142,291.77x = 15,403,082,275.03
  5. Step 5: Solve for x
    x = 15,403,082,275.03/142,291.77
  6. Step 6: Final answer
    x = 108,249.99

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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.