Home / 210,537.86-290,538.74-115,042.36

Finding the Fourth Proportional to 210,537.86, 290,538.74 and 115,042.36

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Solution

The fourth proportional to 210,537.86, 290,538.74 and 115,042.36 is: 158,756.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,537.86 : 290,538.74 = 115,042.36 : x
  2. Step 2: Convert to fraction form
    210,537.86/290,538.74 = 115,042.36/x
  3. Step 3: Cross multiply
    210,537.86x = 290,538.74 × 115,042.36
  4. Step 4: Simplify right side
    210,537.86x = 33,424,262,321.03
  5. Step 5: Solve for x
    x = 33,424,262,321.03/210,537.86
  6. Step 6: Final answer
    x = 158,756.54

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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.