Home / 104,720.85-157,070.34-54,780.84

Finding the Fourth Proportional to 104,720.85, 157,070.34 and 54,780.84

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Solution

The fourth proportional to 104,720.85, 157,070.34 and 54,780.84 is: 82,165.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,720.85 : 157,070.34 = 54,780.84 : x
  2. Step 2: Convert to fraction form
    104,720.85/157,070.34 = 54,780.84/x
  3. Step 3: Cross multiply
    104,720.85x = 157,070.34 × 54,780.84
  4. Step 4: Simplify right side
    104,720.85x = 8,604,445,164.29
  5. Step 5: Solve for x
    x = 8,604,445,164.29/104,720.85
  6. Step 6: Final answer
    x = 82,165.54

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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.