Home / 134,889.12-186,147.02-74,459.80

Finding the Fourth Proportional to 134,889.12, 186,147.02 and 74,459.80

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Solution

The fourth proportional to 134,889.12, 186,147.02 and 74,459.80 is: 102,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,889.12 : 186,147.02 = 74,459.80 : x
  2. Step 2: Convert to fraction form
    134,889.12/186,147.02 = 74,459.80/x
  3. Step 3: Cross multiply
    134,889.12x = 186,147.02 × 74,459.80
  4. Step 4: Simplify right side
    134,889.12x = 13,860,469,879.80
  5. Step 5: Solve for x
    x = 13,860,469,879.80/134,889.12
  6. Step 6: Final answer
    x = 102,754.54

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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.