Home / 158,135.04-218,224.44-86,514.12

Finding the Fourth Proportional to 158,135.04, 218,224.44 and 86,514.12

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Solution

The fourth proportional to 158,135.04, 218,224.44 and 86,514.12 is: 119,388.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,135.04 : 218,224.44 = 86,514.12 : x
  2. Step 2: Convert to fraction form
    158,135.04/218,224.44 = 86,514.12/x
  3. Step 3: Cross multiply
    158,135.04x = 218,224.44 × 86,514.12
  4. Step 4: Simplify right side
    158,135.04x = 18,879,495,389.09
  5. Step 5: Solve for x
    x = 18,879,495,389.09/158,135.04
  6. Step 6: Final answer
    x = 119,388.44

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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.