Home / 247,973.89-342,207.72-139,102.36

Finding the Fourth Proportional to 247,973.89, 342,207.72 and 139,102.36

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Solution

The fourth proportional to 247,973.89, 342,207.72 and 139,102.36 is: 191,963.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,973.89 : 342,207.72 = 139,102.36 : x
  2. Step 2: Convert to fraction form
    247,973.89/342,207.72 = 139,102.36/x
  3. Step 3: Cross multiply
    247,973.89x = 342,207.72 × 139,102.36
  4. Step 4: Simplify right side
    247,973.89x = 47,601,899,055.67
  5. Step 5: Solve for x
    x = 47,601,899,055.67/247,973.89
  6. Step 6: Final answer
    x = 191,963.35

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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.