Home / 128,453.26-177,267.72-71,097.32

Finding the Fourth Proportional to 128,453.26, 177,267.72 and 71,097.32

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Solution

The fourth proportional to 128,453.26, 177,267.72 and 71,097.32 is: 98,115.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,453.26 : 177,267.72 = 71,097.32 : x
  2. Step 2: Convert to fraction form
    128,453.26/177,267.72 = 71,097.32/x
  3. Step 3: Cross multiply
    128,453.26x = 177,267.72 × 71,097.32
  4. Step 4: Simplify right side
    128,453.26x = 12,603,259,814.51
  5. Step 5: Solve for x
    x = 12,603,259,814.51/128,453.26
  6. Step 6: Final answer
    x = 98,115.53

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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.