Home / 158,255.04-218,391.59-86,634.44

Finding the Fourth Proportional to 158,255.04, 218,391.59 and 86,634.44

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Solution

The fourth proportional to 158,255.04, 218,391.59 and 86,634.44 is: 119,555.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,255.04 : 218,391.59 = 86,634.44 : x
  2. Step 2: Convert to fraction form
    158,255.04/218,391.59 = 86,634.44/x
  3. Step 3: Cross multiply
    158,255.04x = 218,391.59 × 86,634.44
  4. Step 4: Simplify right side
    158,255.04x = 18,920,232,224.99
  5. Step 5: Solve for x
    x = 18,920,232,224.99/158,255.04
  6. Step 6: Final answer
    x = 119,555.32

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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.