Home / 104,812.32-144,640.12-57,065.60

Finding the Fourth Proportional to 104,812.32, 144,640.12 and 57,065.60

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Solution

The fourth proportional to 104,812.32, 144,640.12 and 57,065.60 is: 78,750.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.32 : 144,640.12 = 57,065.60 : x
  2. Step 2: Convert to fraction form
    104,812.32/144,640.12 = 57,065.60/x
  3. Step 3: Cross multiply
    104,812.32x = 144,640.12 × 57,065.60
  4. Step 4: Simplify right side
    104,812.32x = 8,253,975,231.87
  5. Step 5: Solve for x
    x = 8,253,975,231.87/104,812.32
  6. Step 6: Final answer
    x = 78,750.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.