Home / 155,369.56-214,277.70-131,288.20

Finding the Fourth Proportional to 155,369.56, 214,277.70 and 131,288.20

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Solution

The fourth proportional to 155,369.56, 214,277.70 and 131,288.20 is: 181,065.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,369.56 : 214,277.70 = 131,288.20 : x
  2. Step 2: Convert to fraction form
    155,369.56/214,277.70 = 131,288.20/x
  3. Step 3: Cross multiply
    155,369.56x = 214,277.70 × 131,288.20
  4. Step 4: Simplify right side
    155,369.56x = 28,132,133,533.14
  5. Step 5: Solve for x
    x = 28,132,133,533.14/155,369.56
  6. Step 6: Final answer
    x = 181,065.93

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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.