Home / 216,938.43-299,358.41-121,432.14

Finding the Fourth Proportional to 216,938.43, 299,358.41 and 121,432.14

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Solution

The fourth proportional to 216,938.43, 299,358.41 and 121,432.14 is: 167,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,938.43 : 299,358.41 = 121,432.14 : x
  2. Step 2: Convert to fraction form
    216,938.43/299,358.41 = 121,432.14/x
  3. Step 3: Cross multiply
    216,938.43x = 299,358.41 × 121,432.14
  4. Step 4: Simplify right side
    216,938.43x = 36,351,732,353.30
  5. Step 5: Solve for x
    x = 36,351,732,353.30/216,938.43
  6. Step 6: Final answer
    x = 167,567.05

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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.