Home / 157,848.60-217,846.09-86,239.41

Finding the Fourth Proportional to 157,848.60, 217,846.09 and 86,239.41

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Solution

The fourth proportional to 157,848.60, 217,846.09 and 86,239.41 is: 119,018.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,848.60 : 217,846.09 = 86,239.41 : x
  2. Step 2: Convert to fraction form
    157,848.60/217,846.09 = 86,239.41/x
  3. Step 3: Cross multiply
    157,848.60x = 217,846.09 × 86,239.41
  4. Step 4: Simplify right side
    157,848.60x = 18,786,918,272.41
  5. Step 5: Solve for x
    x = 18,786,918,272.41/157,848.60
  6. Step 6: Final answer
    x = 119,018.59

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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.