Home / 212,521.30-293,269.92-121,812.22

Finding the Fourth Proportional to 212,521.30, 293,269.92 and 121,812.22

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Solution

The fourth proportional to 212,521.30, 293,269.92 and 121,812.22 is: 168,095.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,521.30 : 293,269.92 = 121,812.22 : x
  2. Step 2: Convert to fraction form
    212,521.30/293,269.92 = 121,812.22/x
  3. Step 3: Cross multiply
    212,521.30x = 293,269.92 × 121,812.22
  4. Step 4: Simplify right side
    212,521.30x = 35,723,860,014.42
  5. Step 5: Solve for x
    x = 35,723,860,014.42/212,521.30
  6. Step 6: Final answer
    x = 168,095.43

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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.