Home / 105,020.80-157,530.87-26,135.05

Finding the Fourth Proportional to 105,020.80, 157,530.87 and 26,135.05

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Solution

The fourth proportional to 105,020.80, 157,530.87 and 26,135.05 is: 39,202.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,020.80 : 157,530.87 = 26,135.05 : x
  2. Step 2: Convert to fraction form
    105,020.80/157,530.87 = 26,135.05/x
  3. Step 3: Cross multiply
    105,020.80x = 157,530.87 × 26,135.05
  4. Step 4: Simplify right side
    105,020.80x = 4,117,077,163.99
  5. Step 5: Solve for x
    x = 4,117,077,163.99/105,020.80
  6. Step 6: Final answer
    x = 39,202.49

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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.