Home / 190,889.56-286,207.96-91,065.16

Finding the Fourth Proportional to 190,889.56, 286,207.96 and 91,065.16

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Solution

The fourth proportional to 190,889.56, 286,207.96 and 91,065.16 is: 136,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,889.56 : 286,207.96 = 91,065.16 : x
  2. Step 2: Convert to fraction form
    190,889.56/286,207.96 = 91,065.16/x
  3. Step 3: Cross multiply
    190,889.56x = 286,207.96 × 91,065.16
  4. Step 4: Simplify right side
    190,889.56x = 26,063,573,670.67
  5. Step 5: Solve for x
    x = 26,063,573,670.67/190,889.56
  6. Step 6: Final answer
    x = 136,537.45

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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.