Home / 211,680.21-317,391.51-89,957.25

Finding the Fourth Proportional to 211,680.21, 317,391.51 and 89,957.25

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Solution

The fourth proportional to 211,680.21, 317,391.51 and 89,957.25 is: 134,881.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,680.21 : 317,391.51 = 89,957.25 : x
  2. Step 2: Convert to fraction form
    211,680.21/317,391.51 = 89,957.25/x
  3. Step 3: Cross multiply
    211,680.21x = 317,391.51 × 89,957.25
  4. Step 4: Simplify right side
    211,680.21x = 28,551,667,412.95
  5. Step 5: Solve for x
    x = 28,551,667,412.95/211,680.21
  6. Step 6: Final answer
    x = 134,881.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.