Home / 155,795.10-233,765.55-80,999.70

Finding the Fourth Proportional to 155,795.10, 233,765.55 and 80,999.70

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Solution

The fourth proportional to 155,795.10, 233,765.55 and 80,999.70 is: 121,537.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,795.10 : 233,765.55 = 80,999.70 : x
  2. Step 2: Convert to fraction form
    155,795.10/233,765.55 = 80,999.70/x
  3. Step 3: Cross multiply
    155,795.10x = 233,765.55 × 80,999.70
  4. Step 4: Simplify right side
    155,795.10x = 18,934,939,420.34
  5. Step 5: Solve for x
    x = 18,934,939,420.34/155,795.10
  6. Step 6: Final answer
    x = 121,537.45

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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.