Home / 135,225.72-186,611.94-74,795.40

Finding the Fourth Proportional to 135,225.72, 186,611.94 and 74,795.40

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Solution

The fourth proportional to 135,225.72, 186,611.94 and 74,795.40 is: 103,217.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,225.72 : 186,611.94 = 74,795.40 : x
  2. Step 2: Convert to fraction form
    135,225.72/186,611.94 = 74,795.40/x
  3. Step 3: Cross multiply
    135,225.72x = 186,611.94 × 74,795.40
  4. Step 4: Simplify right side
    135,225.72x = 13,957,714,697.08
  5. Step 5: Solve for x
    x = 13,957,714,697.08/135,225.72
  6. Step 6: Final answer
    x = 103,217.90

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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.