Home / 212,425.29-293,147.73-121,783.23

Finding the Fourth Proportional to 212,425.29, 293,147.73 and 121,783.23

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Solution

The fourth proportional to 212,425.29, 293,147.73 and 121,783.23 is: 168,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,425.29 : 293,147.73 = 121,783.23 : x
  2. Step 2: Convert to fraction form
    212,425.29/293,147.73 = 121,783.23/x
  3. Step 3: Cross multiply
    212,425.29x = 293,147.73 × 121,783.23
  4. Step 4: Simplify right side
    212,425.29x = 35,700,477,426.57
  5. Step 5: Solve for x
    x = 35,700,477,426.57/212,425.29
  6. Step 6: Final answer
    x = 168,061.33

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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.