Home / 154,030.53-212,559.79-86,048.48

Finding the Fourth Proportional to 154,030.53, 212,559.79 and 86,048.48

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Solution

The fourth proportional to 154,030.53, 212,559.79 and 86,048.48 is: 118,745.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,030.53 : 212,559.79 = 86,048.48 : x
  2. Step 2: Convert to fraction form
    154,030.53/212,559.79 = 86,048.48/x
  3. Step 3: Cross multiply
    154,030.53x = 212,559.79 × 86,048.48
  4. Step 4: Simplify right side
    154,030.53x = 18,290,446,838.62
  5. Step 5: Solve for x
    x = 18,290,446,838.62/154,030.53
  6. Step 6: Final answer
    x = 118,745.59

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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.