Home / 212,838.84-293,768.78-127,939.50

Finding the Fourth Proportional to 212,838.84, 293,768.78 and 127,939.50

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Solution

The fourth proportional to 212,838.84, 293,768.78 and 127,939.50 is: 176,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,838.84 : 293,768.78 = 127,939.50 : x
  2. Step 2: Convert to fraction form
    212,838.84/293,768.78 = 127,939.50/x
  3. Step 3: Cross multiply
    212,838.84x = 293,768.78 × 127,939.50
  4. Step 4: Simplify right side
    212,838.84x = 37,584,630,189.11
  5. Step 5: Solve for x
    x = 37,584,630,189.11/212,838.84
  6. Step 6: Final answer
    x = 176,587.27

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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.