Home / 104,812.28-144,640.87-57,065.62

Finding the Fourth Proportional to 104,812.28, 144,640.87 and 57,065.62

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Solution

The fourth proportional to 104,812.28, 144,640.87 and 57,065.62 is: 78,750.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,812.28 : 144,640.87 = 57,065.62 : x
  2. Step 2: Convert to fraction form
    104,812.28/144,640.87 = 57,065.62/x
  3. Step 3: Cross multiply
    104,812.28x = 144,640.87 × 57,065.62
  4. Step 4: Simplify right side
    104,812.28x = 8,254,021,418.62
  5. Step 5: Solve for x
    x = 8,254,021,418.62/104,812.28
  6. Step 6: Final answer
    x = 78,750.52

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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.