Home / 157,846.48-217,820.02-86,212.66

Finding the Fourth Proportional to 157,846.48, 217,820.02 and 86,212.66

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Solution

The fourth proportional to 157,846.48, 217,820.02 and 86,212.66 is: 118,969.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,846.48 : 217,820.02 = 86,212.66 : x
  2. Step 2: Convert to fraction form
    157,846.48/217,820.02 = 86,212.66/x
  3. Step 3: Cross multiply
    157,846.48x = 217,820.02 × 86,212.66
  4. Step 4: Simplify right side
    157,846.48x = 18,778,843,325.45
  5. Step 5: Solve for x
    x = 18,778,843,325.45/157,846.48
  6. Step 6: Final answer
    x = 118,969.03

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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.