Home / 211,938.63-317,895.07-75,168.51

Finding the Fourth Proportional to 211,938.63, 317,895.07 and 75,168.51

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Solution

The fourth proportional to 211,938.63, 317,895.07 and 75,168.51 is: 112,748.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,938.63 : 317,895.07 = 75,168.51 : x
  2. Step 2: Convert to fraction form
    211,938.63/317,895.07 = 75,168.51/x
  3. Step 3: Cross multiply
    211,938.63x = 317,895.07 × 75,168.51
  4. Step 4: Simplify right side
    211,938.63x = 23,895,697,403.45
  5. Step 5: Solve for x
    x = 23,895,697,403.45/211,938.63
  6. Step 6: Final answer
    x = 112,748.19

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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.