Home / 317,813.22-476,719.29-81,156.06

Finding the Fourth Proportional to 317,813.22, 476,719.29 and 81,156.06

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Solution

The fourth proportional to 317,813.22, 476,719.29 and 81,156.06 is: 121,733.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,813.22 : 476,719.29 = 81,156.06 : x
  2. Step 2: Convert to fraction form
    317,813.22/476,719.29 = 81,156.06/x
  3. Step 3: Cross multiply
    317,813.22x = 476,719.29 × 81,156.06
  4. Step 4: Simplify right side
    317,813.22x = 38,688,659,302.40
  5. Step 5: Solve for x
    x = 38,688,659,302.40/317,813.22
  6. Step 6: Final answer
    x = 121,733.95

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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.