Home / 210,501.08-290,495.67-115,013.70

Finding the Fourth Proportional to 210,501.08, 290,495.67 and 115,013.70

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Solution

The fourth proportional to 210,501.08, 290,495.67 and 115,013.70 is: 158,721.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,501.08 : 290,495.67 = 115,013.70 : x
  2. Step 2: Convert to fraction form
    210,501.08/290,495.67 = 115,013.70/x
  3. Step 3: Cross multiply
    210,501.08x = 290,495.67 × 115,013.70
  4. Step 4: Simplify right side
    210,501.08x = 33,410,981,840.68
  5. Step 5: Solve for x
    x = 33,410,981,840.68/210,501.08
  6. Step 6: Final answer
    x = 158,721.19

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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.