Home / 147,969.12-204,134.64-90,586.82

Finding the Fourth Proportional to 147,969.12, 204,134.64 and 90,586.82

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Solution

The fourth proportional to 147,969.12, 204,134.64 and 90,586.82 is: 124,971.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,969.12 : 204,134.64 = 90,586.82 : x
  2. Step 2: Convert to fraction form
    147,969.12/204,134.64 = 90,586.82/x
  3. Step 3: Cross multiply
    147,969.12x = 204,134.64 × 90,586.82
  4. Step 4: Simplify right side
    147,969.12x = 18,491,907,889.44
  5. Step 5: Solve for x
    x = 18,491,907,889.44/147,969.12
  6. Step 6: Final answer
    x = 124,971.40

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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.