Home / 104,760.82-157,140.39-69,380.50

Finding the Fourth Proportional to 104,760.82, 157,140.39 and 69,380.50

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Solution

The fourth proportional to 104,760.82, 157,140.39 and 69,380.50 is: 104,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,760.82 : 157,140.39 = 69,380.50 : x
  2. Step 2: Convert to fraction form
    104,760.82/157,140.39 = 69,380.50/x
  3. Step 3: Cross multiply
    104,760.82x = 157,140.39 × 69,380.50
  4. Step 4: Simplify right side
    104,760.82x = 10,902,478,828.40
  5. Step 5: Solve for x
    x = 10,902,478,828.40/104,760.82
  6. Step 6: Final answer
    x = 104,070.19

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1.5x scale

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.