Home / 212,688.82-293,412.58-136,171.16

Finding the Fourth Proportional to 212,688.82, 293,412.58 and 136,171.16

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Solution

The fourth proportional to 212,688.82, 293,412.58 and 136,171.16 is: 187,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,688.82 : 293,412.58 = 136,171.16 : x
  2. Step 2: Convert to fraction form
    212,688.82/293,412.58 = 136,171.16/x
  3. Step 3: Cross multiply
    212,688.82x = 293,412.58 × 136,171.16
  4. Step 4: Simplify right side
    212,688.82x = 39,954,330,670.00
  5. Step 5: Solve for x
    x = 39,954,330,670.00/212,688.82
  6. Step 6: Final answer
    x = 187,853.46

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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.