Home / 102,467.10-141,404.32-57,145.13

Finding the Fourth Proportional to 102,467.10, 141,404.32 and 57,145.13

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Solution

The fourth proportional to 102,467.10, 141,404.32 and 57,145.13 is: 78,860.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,467.10 : 141,404.32 = 57,145.13 : x
  2. Step 2: Convert to fraction form
    102,467.10/141,404.32 = 57,145.13/x
  3. Step 3: Cross multiply
    102,467.10x = 141,404.32 × 57,145.13
  4. Step 4: Simplify right side
    102,467.10x = 8,080,568,248.96
  5. Step 5: Solve for x
    x = 8,080,568,248.96/102,467.10
  6. Step 6: Final answer
    x = 78,860.12

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1.5x scale

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.