Home / 91,588.05-126,175.73-86,076.81

Finding the Fourth Proportional to 91,588.05, 126,175.73 and 86,076.81

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Solution

The fourth proportional to 91,588.05, 126,175.73 and 86,076.81 is: 118,583.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,588.05 : 126,175.73 = 86,076.81 : x
  2. Step 2: Convert to fraction form
    91,588.05/126,175.73 = 86,076.81/x
  3. Step 3: Cross multiply
    91,588.05x = 126,175.73 × 86,076.81
  4. Step 4: Simplify right side
    91,588.05x = 10,860,803,907.44
  5. Step 5: Solve for x
    x = 10,860,803,907.44/91,588.05
  6. Step 6: Final answer
    x = 118,583.20

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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.