Home / 155,446.10-214,515.60-88,378.10

Finding the Fourth Proportional to 155,446.10, 214,515.60 and 88,378.10

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Solution

The fourth proportional to 155,446.10, 214,515.60 and 88,378.10 is: 121,961.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,446.10 : 214,515.60 = 88,378.10 : x
  2. Step 2: Convert to fraction form
    155,446.10/214,515.60 = 88,378.10/x
  3. Step 3: Cross multiply
    155,446.10x = 214,515.60 × 88,378.10
  4. Step 4: Simplify right side
    155,446.10x = 18,958,480,075.78
  5. Step 5: Solve for x
    x = 18,958,480,075.78/155,446.10
  6. Step 6: Final answer
    x = 121,961.76

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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.