Home / 113,865.96-170,805.16-47,312.80

Finding the Fourth Proportional to 113,865.96, 170,805.16 and 47,312.80

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Solution

The fourth proportional to 113,865.96, 170,805.16 and 47,312.80 is: 70,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,865.96 : 170,805.16 = 47,312.80 : x
  2. Step 2: Convert to fraction form
    113,865.96/170,805.16 = 47,312.80/x
  3. Step 3: Cross multiply
    113,865.96x = 170,805.16 × 47,312.80
  4. Step 4: Simplify right side
    113,865.96x = 8,081,270,374.05
  5. Step 5: Solve for x
    x = 8,081,270,374.05/113,865.96
  6. Step 6: Final answer
    x = 70,971.78

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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.