Home / 211,637.49-292,072.86-139,893.09

Finding the Fourth Proportional to 211,637.49, 292,072.86 and 139,893.09

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Solution

The fourth proportional to 211,637.49, 292,072.86 and 139,893.09 is: 193,061.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,637.49 : 292,072.86 = 139,893.09 : x
  2. Step 2: Convert to fraction form
    211,637.49/292,072.86 = 139,893.09/x
  3. Step 3: Cross multiply
    211,637.49x = 292,072.86 × 139,893.09
  4. Step 4: Simplify right side
    211,637.49x = 40,858,972,730.71
  5. Step 5: Solve for x
    x = 40,858,972,730.71/211,637.49
  6. Step 6: Final answer
    x = 193,061.13

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1.5x scale

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.