Home / 155,440.56-214,577.40-119,617.20

Finding the Fourth Proportional to 155,440.56, 214,577.40 and 119,617.20

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Solution

The fourth proportional to 155,440.56, 214,577.40 and 119,617.20 is: 165,125.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,440.56 : 214,577.40 = 119,617.20 : x
  2. Step 2: Convert to fraction form
    155,440.56/214,577.40 = 119,617.20/x
  3. Step 3: Cross multiply
    155,440.56x = 214,577.40 × 119,617.20
  4. Step 4: Simplify right side
    155,440.56x = 25,667,147,771.28
  5. Step 5: Solve for x
    x = 25,667,147,771.28/155,440.56
  6. Step 6: Final answer
    x = 165,125.16

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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.