Home / 104,874.43-144,722.28-57,128.17

Finding the Fourth Proportional to 104,874.43, 144,722.28 and 57,128.17

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Solution

The fourth proportional to 104,874.43, 144,722.28 and 57,128.17 is: 78,834.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,874.43 : 144,722.28 = 57,128.17 : x
  2. Step 2: Convert to fraction form
    104,874.43/144,722.28 = 57,128.17/x
  3. Step 3: Cross multiply
    104,874.43x = 144,722.28 × 57,128.17
  4. Step 4: Simplify right side
    104,874.43x = 8,267,719,014.63
  5. Step 5: Solve for x
    x = 8,267,719,014.63/104,874.43
  6. Step 6: Final answer
    x = 78,834.46

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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.