Home / 210,641.12-290,684.76-115,148.52

Finding the Fourth Proportional to 210,641.12, 290,684.76 and 115,148.52

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Solution

The fourth proportional to 210,641.12, 290,684.76 and 115,148.52 is: 158,904.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,641.12 : 290,684.76 = 115,148.52 : x
  2. Step 2: Convert to fraction form
    210,641.12/290,684.76 = 115,148.52/x
  3. Step 3: Cross multiply
    210,641.12x = 290,684.76 × 115,148.52
  4. Step 4: Simplify right side
    210,641.12x = 33,471,919,900.56
  5. Step 5: Solve for x
    x = 33,471,919,900.56/210,641.12
  6. Step 6: Final answer
    x = 158,904.97

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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.