Home / 211,936.50-292,406.39-130,178.98

Finding the Fourth Proportional to 211,936.50, 292,406.39 and 130,178.98

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Solution

The fourth proportional to 211,936.50, 292,406.39 and 130,178.98 is: 179,606.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,936.50 : 292,406.39 = 130,178.98 : x
  2. Step 2: Convert to fraction form
    211,936.50/292,406.39 = 130,178.98/x
  3. Step 3: Cross multiply
    211,936.50x = 292,406.39 × 130,178.98
  4. Step 4: Simplify right side
    211,936.50x = 38,065,165,798.47
  5. Step 5: Solve for x
    x = 38,065,165,798.47/211,936.50
  6. Step 6: Final answer
    x = 179,606.47

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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.