Home / 157,622.56-217,487.28-100,284.64

Finding the Fourth Proportional to 157,622.56, 217,487.28 and 100,284.64

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Solution

The fourth proportional to 157,622.56, 217,487.28 and 100,284.64 is: 138,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,622.56 : 217,487.28 = 100,284.64 : x
  2. Step 2: Convert to fraction form
    157,622.56/217,487.28 = 100,284.64/x
  3. Step 3: Cross multiply
    157,622.56x = 217,487.28 × 100,284.64
  4. Step 4: Simplify right side
    157,622.56x = 21,810,633,579.38
  5. Step 5: Solve for x
    x = 21,810,633,579.38/157,622.56
  6. Step 6: Final answer
    x = 138,372.54

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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.