Home / 102,860.85-154,235.79-46,670.31

Finding the Fourth Proportional to 102,860.85, 154,235.79 and 46,670.31

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Solution

The fourth proportional to 102,860.85, 154,235.79 and 46,670.31 is: 69,980.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,860.85 : 154,235.79 = 46,670.31 : x
  2. Step 2: Convert to fraction form
    102,860.85/154,235.79 = 46,670.31/x
  3. Step 3: Cross multiply
    102,860.85x = 154,235.79 × 46,670.31
  4. Step 4: Simplify right side
    102,860.85x = 7,198,232,132.39
  5. Step 5: Solve for x
    x = 7,198,232,132.39/102,860.85
  6. Step 6: Final answer
    x = 69,980.29

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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.