Home / 189,009.69-283,416.09-89,143.06

Finding the Fourth Proportional to 189,009.69, 283,416.09 and 89,143.06

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Solution

The fourth proportional to 189,009.69, 283,416.09 and 89,143.06 is: 133,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,009.69 : 283,416.09 = 89,143.06 : x
  2. Step 2: Convert to fraction form
    189,009.69/283,416.09 = 89,143.06/x
  3. Step 3: Cross multiply
    189,009.69x = 283,416.09 × 89,143.06
  4. Step 4: Simplify right side
    189,009.69x = 25,264,577,515.84
  5. Step 5: Solve for x
    x = 25,264,577,515.84/189,009.69
  6. Step 6: Final answer
    x = 133,668.16

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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.