Home / 259,747.05-389,670.83-99,810.93

Finding the Fourth Proportional to 259,747.05, 389,670.83 and 99,810.93

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Solution

The fourth proportional to 259,747.05, 389,670.83 and 99,810.93 is: 149,735.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,747.05 : 389,670.83 = 99,810.93 : x
  2. Step 2: Convert to fraction form
    259,747.05/389,670.83 = 99,810.93/x
  3. Step 3: Cross multiply
    259,747.05x = 389,670.83 × 99,810.93
  4. Step 4: Simplify right side
    259,747.05x = 38,893,407,437.12
  5. Step 5: Solve for x
    x = 38,893,407,437.12/259,747.05
  6. Step 6: Final answer
    x = 149,735.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.