Home / 161,984.45-223,544.63-90,378.32

Finding the Fourth Proportional to 161,984.45, 223,544.63 and 90,378.32

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Solution

The fourth proportional to 161,984.45, 223,544.63 and 90,378.32 is: 124,725.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,984.45 : 223,544.63 = 90,378.32 : x
  2. Step 2: Convert to fraction form
    161,984.45/223,544.63 = 90,378.32/x
  3. Step 3: Cross multiply
    161,984.45x = 223,544.63 × 90,378.32
  4. Step 4: Simplify right side
    161,984.45x = 20,203,586,534.81
  5. Step 5: Solve for x
    x = 20,203,586,534.81/161,984.45
  6. Step 6: Final answer
    x = 124,725.47

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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.