Home / 157,670.37-217,509.43-103,198.56

Finding the Fourth Proportional to 157,670.37, 217,509.43 and 103,198.56

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Solution

The fourth proportional to 157,670.37, 217,509.43 and 103,198.56 is: 142,364.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,670.37 : 217,509.43 = 103,198.56 : x
  2. Step 2: Convert to fraction form
    157,670.37/217,509.43 = 103,198.56/x
  3. Step 3: Cross multiply
    157,670.37x = 217,509.43 × 103,198.56
  4. Step 4: Simplify right side
    157,670.37x = 22,446,659,468.51
  5. Step 5: Solve for x
    x = 22,446,659,468.51/157,670.37
  6. Step 6: Final answer
    x = 142,364.47

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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.