Home / 155,229.76-214,214.88-101,604.16

Finding the Fourth Proportional to 155,229.76, 214,214.88 and 101,604.16

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Solution

The fourth proportional to 155,229.76, 214,214.88 and 101,604.16 is: 140,212.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,229.76 : 214,214.88 = 101,604.16 : x
  2. Step 2: Convert to fraction form
    155,229.76/214,214.88 = 101,604.16/x
  3. Step 3: Cross multiply
    155,229.76x = 214,214.88 × 101,604.16
  4. Step 4: Simplify right side
    155,229.76x = 21,765,122,941.90
  5. Step 5: Solve for x
    x = 21,765,122,941.90/155,229.76
  6. Step 6: Final answer
    x = 140,212.31

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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.