Home / 148,947.76-205,756.77-135,495.28

Finding the Fourth Proportional to 148,947.76, 205,756.77 and 135,495.28

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Solution

The fourth proportional to 148,947.76, 205,756.77 and 135,495.28 is: 187,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,947.76 : 205,756.77 = 135,495.28 : x
  2. Step 2: Convert to fraction form
    148,947.76/205,756.77 = 135,495.28/x
  3. Step 3: Cross multiply
    148,947.76x = 205,756.77 × 135,495.28
  4. Step 4: Simplify right side
    148,947.76x = 27,879,071,163.05
  5. Step 5: Solve for x
    x = 27,879,071,163.05/148,947.76
  6. Step 6: Final answer
    x = 187,173.48

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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.