Home / 115,830.08-173,627.40-45,612.80

Finding the Fourth Proportional to 115,830.08, 173,627.40 and 45,612.80

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Solution

The fourth proportional to 115,830.08, 173,627.40 and 45,612.80 is: 68,372.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,830.08 : 173,627.40 = 45,612.80 : x
  2. Step 2: Convert to fraction form
    115,830.08/173,627.40 = 45,612.80/x
  3. Step 3: Cross multiply
    115,830.08x = 173,627.40 × 45,612.80
  4. Step 4: Simplify right side
    115,830.08x = 7,919,631,870.72
  5. Step 5: Solve for x
    x = 7,919,631,870.72/115,830.08
  6. Step 6: Final answer
    x = 68,372.84

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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.