Home / 248,012.93-342,242.51-139,111.28

Finding the Fourth Proportional to 248,012.93, 342,242.51 and 139,111.28

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Solution

The fourth proportional to 248,012.93, 342,242.51 and 139,111.28 is: 191,964.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,012.93 : 342,242.51 = 139,111.28 : x
  2. Step 2: Convert to fraction form
    248,012.93/342,242.51 = 139,111.28/x
  3. Step 3: Cross multiply
    248,012.93x = 342,242.51 × 139,111.28
  4. Step 4: Simplify right side
    248,012.93x = 47,609,793,636.51
  5. Step 5: Solve for x
    x = 47,609,793,636.51/248,012.93
  6. Step 6: Final answer
    x = 191,964.97

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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.