Home / 212,225.25-292,912.44-121,641.93

Finding the Fourth Proportional to 212,225.25, 292,912.44 and 121,641.93

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Solution

The fourth proportional to 212,225.25, 292,912.44 and 121,641.93 is: 167,889.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,225.25 : 292,912.44 = 121,641.93 : x
  2. Step 2: Convert to fraction form
    212,225.25/292,912.44 = 121,641.93/x
  3. Step 3: Cross multiply
    212,225.25x = 292,912.44 × 121,641.93
  4. Step 4: Simplify right side
    212,225.25x = 35,630,434,522.61
  5. Step 5: Solve for x
    x = 35,630,434,522.61/212,225.25
  6. Step 6: Final answer
    x = 167,889.70

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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.