Home / 102,137.55-153,225.15-45,979.03

Finding the Fourth Proportional to 102,137.55, 153,225.15 and 45,979.03

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Solution

The fourth proportional to 102,137.55, 153,225.15 and 45,979.03 is: 68,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,137.55 : 153,225.15 = 45,979.03 : x
  2. Step 2: Convert to fraction form
    102,137.55/153,225.15 = 45,979.03/x
  3. Step 3: Cross multiply
    102,137.55x = 153,225.15 × 45,979.03
  4. Step 4: Simplify right side
    102,137.55x = 7,045,143,768.60
  5. Step 5: Solve for x
    x = 7,045,143,768.60/102,137.55
  6. Step 6: Final answer
    x = 68,977.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.