Home / 155,220.29-214,256.45-100,846.85

Finding the Fourth Proportional to 155,220.29, 214,256.45 and 100,846.85

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Solution

The fourth proportional to 155,220.29, 214,256.45 and 100,846.85 is: 139,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,220.29 : 214,256.45 = 100,846.85 : x
  2. Step 2: Convert to fraction form
    155,220.29/214,256.45 = 100,846.85/x
  3. Step 3: Cross multiply
    155,220.29x = 214,256.45 × 100,846.85
  4. Step 4: Simplify right side
    155,220.29x = 21,607,087,570.45
  5. Step 5: Solve for x
    x = 21,607,087,570.45/155,220.29
  6. Step 6: Final answer
    x = 139,202.73

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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.