Home / 210,585.09-290,606.73-115,091.76

Finding the Fourth Proportional to 210,585.09, 290,606.73 and 115,091.76

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Solution

The fourth proportional to 210,585.09, 290,606.73 and 115,091.76 is: 158,826.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,585.09 : 290,606.73 = 115,091.76 : x
  2. Step 2: Convert to fraction form
    210,585.09/290,606.73 = 115,091.76/x
  3. Step 3: Cross multiply
    210,585.09x = 290,606.73 × 115,091.76
  4. Step 4: Simplify right side
    210,585.09x = 33,446,440,023.54
  5. Step 5: Solve for x
    x = 33,446,440,023.54/210,585.09
  6. Step 6: Final answer
    x = 158,826.25

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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.