Home / 115,048.20-171,648.18-102,418.26

Finding the Fourth Proportional to 115,048.20, 171,648.18 and 102,418.26

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Solution

The fourth proportional to 115,048.20, 171,648.18 and 102,418.26 is: 152,804.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,048.20 : 171,648.18 = 102,418.26 : x
  2. Step 2: Convert to fraction form
    115,048.20/171,648.18 = 102,418.26/x
  3. Step 3: Cross multiply
    115,048.20x = 171,648.18 × 102,418.26
  4. Step 4: Simplify right side
    115,048.20x = 17,579,907,927.77
  5. Step 5: Solve for x
    x = 17,579,907,927.77/115,048.20
  6. Step 6: Final answer
    x = 152,804.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.