Home / 134,845.56-186,078.47-74,416.12

Finding the Fourth Proportional to 134,845.56, 186,078.47 and 74,416.12

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Solution

The fourth proportional to 134,845.56, 186,078.47 and 74,416.12 is: 102,689.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,845.56 : 186,078.47 = 74,416.12 : x
  2. Step 2: Convert to fraction form
    134,845.56/186,078.47 = 74,416.12/x
  3. Step 3: Cross multiply
    134,845.56x = 186,078.47 × 74,416.12
  4. Step 4: Simplify right side
    134,845.56x = 13,847,236,915.66
  5. Step 5: Solve for x
    x = 13,847,236,915.66/134,845.56
  6. Step 6: Final answer
    x = 102,689.60

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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.