Home / 135,040.08-186,352.20-74,607.60

Finding the Fourth Proportional to 135,040.08, 186,352.20 and 74,607.60

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Solution

The fourth proportional to 135,040.08, 186,352.20 and 74,607.60 is: 102,956.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,040.08 : 186,352.20 = 74,607.60 : x
  2. Step 2: Convert to fraction form
    135,040.08/186,352.20 = 74,607.60/x
  3. Step 3: Cross multiply
    135,040.08x = 186,352.20 × 74,607.60
  4. Step 4: Simplify right side
    135,040.08x = 13,903,290,396.72
  5. Step 5: Solve for x
    x = 13,903,290,396.72/135,040.08
  6. Step 6: Final answer
    x = 102,956.77

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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.