Home / 212,185.61-292,819.04-121,541.52

Finding the Fourth Proportional to 212,185.61, 292,819.04 and 121,541.52

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Solution

The fourth proportional to 212,185.61, 292,819.04 and 121,541.52 is: 167,728.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,185.61 : 292,819.04 = 121,541.52 : x
  2. Step 2: Convert to fraction form
    212,185.61/292,819.04 = 121,541.52/x
  3. Step 3: Cross multiply
    212,185.61x = 292,819.04 × 121,541.52
  4. Step 4: Simplify right side
    212,185.61x = 35,589,670,598.83
  5. Step 5: Solve for x
    x = 35,589,670,598.83/212,185.61
  6. Step 6: Final answer
    x = 167,728.96

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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.