Home / 210,545.10-290,559.42-115,057.98

Finding the Fourth Proportional to 210,545.10, 290,559.42 and 115,057.98

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Solution

The fourth proportional to 210,545.10, 290,559.42 and 115,057.98 is: 158,783.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,545.10 : 290,559.42 = 115,057.98 : x
  2. Step 2: Convert to fraction form
    210,545.10/290,559.42 = 115,057.98/x
  3. Step 3: Cross multiply
    210,545.10x = 290,559.42 × 115,057.98
  4. Step 4: Simplify right side
    210,545.10x = 33,431,179,935.17
  5. Step 5: Solve for x
    x = 33,431,179,935.17/210,545.10
  6. Step 6: Final answer
    x = 158,783.94

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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.