Home / 158,723.04-219,039.44-87,107.68

Finding the Fourth Proportional to 158,723.04, 219,039.44 and 87,107.68

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Solution

The fourth proportional to 158,723.04, 219,039.44 and 87,107.68 is: 120,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,723.04 : 219,039.44 = 87,107.68 : x
  2. Step 2: Convert to fraction form
    158,723.04/219,039.44 = 87,107.68/x
  3. Step 3: Cross multiply
    158,723.04x = 219,039.44 × 87,107.68
  4. Step 4: Simplify right side
    158,723.04x = 19,080,017,446.90
  5. Step 5: Solve for x
    x = 19,080,017,446.90/158,723.04
  6. Step 6: Final answer
    x = 120,209.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.