Home / 210,896.51-291,037.19-115,403.20

Finding the Fourth Proportional to 210,896.51, 291,037.19 and 115,403.20

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Solution

The fourth proportional to 210,896.51, 291,037.19 and 115,403.20 is: 159,256.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,896.51 : 291,037.19 = 115,403.20 : x
  2. Step 2: Convert to fraction form
    210,896.51/291,037.19 = 115,403.20/x
  3. Step 3: Cross multiply
    210,896.51x = 291,037.19 × 115,403.20
  4. Step 4: Simplify right side
    210,896.51x = 33,586,621,740.40
  5. Step 5: Solve for x
    x = 33,586,621,740.40/210,896.51
  6. Step 6: Final answer
    x = 159,256.42

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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.