Home / 212,225.76-292,913.14-121,642.44

Finding the Fourth Proportional to 212,225.76, 292,913.14 and 121,642.44

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Solution

The fourth proportional to 212,225.76, 292,913.14 and 121,642.44 is: 167,890.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,225.76 : 292,913.14 = 121,642.44 : x
  2. Step 2: Convert to fraction form
    212,225.76/292,913.14 = 121,642.44/x
  3. Step 3: Cross multiply
    212,225.76x = 292,913.14 × 121,642.44
  4. Step 4: Simplify right side
    212,225.76x = 35,630,669,057.66
  5. Step 5: Solve for x
    x = 35,630,669,057.66/212,225.76
  6. Step 6: Final answer
    x = 167,890.41

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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.