Home / 286,612.44-429,919.68-86,934.56

Finding the Fourth Proportional to 286,612.44, 429,919.68 and 86,934.56

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Solution

The fourth proportional to 286,612.44, 429,919.68 and 86,934.56 is: 130,402.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,612.44 : 429,919.68 = 86,934.56 : x
  2. Step 2: Convert to fraction form
    286,612.44/429,919.68 = 86,934.56/x
  3. Step 3: Cross multiply
    286,612.44x = 429,919.68 × 86,934.56
  4. Step 4: Simplify right side
    286,612.44x = 37,374,878,216.14
  5. Step 5: Solve for x
    x = 37,374,878,216.14/286,612.44
  6. Step 6: Final answer
    x = 130,402.15

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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.