Home / 317,834.10-476,751.09-81,168.30

Finding the Fourth Proportional to 317,834.10, 476,751.09 and 81,168.30

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Solution

The fourth proportional to 317,834.10, 476,751.09 and 81,168.30 is: 121,752.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,834.10 : 476,751.09 = 81,168.30 : x
  2. Step 2: Convert to fraction form
    317,834.10/476,751.09 = 81,168.30/x
  3. Step 3: Cross multiply
    317,834.10x = 476,751.09 × 81,168.30
  4. Step 4: Simplify right side
    317,834.10x = 38,697,075,498.45
  5. Step 5: Solve for x
    x = 38,697,075,498.45/317,834.10
  6. Step 6: Final answer
    x = 121,752.43

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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.