Home / 105,212.16-157,844.48-31,339.52

Finding the Fourth Proportional to 105,212.16, 157,844.48 and 31,339.52

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Solution

The fourth proportional to 105,212.16, 157,844.48 and 31,339.52 is: 47,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,212.16 : 157,844.48 = 31,339.52 : x
  2. Step 2: Convert to fraction form
    105,212.16/157,844.48 = 31,339.52/x
  3. Step 3: Cross multiply
    105,212.16x = 157,844.48 × 31,339.52
  4. Step 4: Simplify right side
    105,212.16x = 4,946,770,237.85
  5. Step 5: Solve for x
    x = 4,946,770,237.85/105,212.16
  6. Step 6: Final answer
    x = 47,017.10

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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.