Home / 201,533.12-278,230.90-133,642.34

Finding the Fourth Proportional to 201,533.12, 278,230.90 and 133,642.34

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Solution

The fourth proportional to 201,533.12, 278,230.90 and 133,642.34 is: 184,502.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,533.12 : 278,230.90 = 133,642.34 : x
  2. Step 2: Convert to fraction form
    201,533.12/278,230.90 = 133,642.34/x
  3. Step 3: Cross multiply
    201,533.12x = 278,230.90 × 133,642.34
  4. Step 4: Simplify right side
    201,533.12x = 37,183,426,811.05
  5. Step 5: Solve for x
    x = 37,183,426,811.05/201,533.12
  6. Step 6: Final answer
    x = 184,502.81

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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.