Home / 158,107.06-218,192.99-86,487.16

Finding the Fourth Proportional to 158,107.06, 218,192.99 and 86,487.16

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Solution

The fourth proportional to 158,107.06, 218,192.99 and 86,487.16 is: 119,355.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,107.06 : 218,192.99 = 86,487.16 : x
  2. Step 2: Convert to fraction form
    158,107.06/218,192.99 = 86,487.16/x
  3. Step 3: Cross multiply
    158,107.06x = 218,192.99 × 86,487.16
  4. Step 4: Simplify right side
    158,107.06x = 18,870,892,037.01
  5. Step 5: Solve for x
    x = 18,870,892,037.01/158,107.06
  6. Step 6: Final answer
    x = 119,355.15

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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.