Home / 286,254.79-429,381.83-108,719.35

Finding the Fourth Proportional to 286,254.79, 429,381.83 and 108,719.35

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Solution

The fourth proportional to 286,254.79, 429,381.83 and 108,719.35 is: 163,078.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,254.79 : 429,381.83 = 108,719.35 : x
  2. Step 2: Convert to fraction form
    286,254.79/429,381.83 = 108,719.35/x
  3. Step 3: Cross multiply
    286,254.79x = 429,381.83 × 108,719.35
  4. Step 4: Simplify right side
    286,254.79x = 46,682,112,915.81
  5. Step 5: Solve for x
    x = 46,682,112,915.81/286,254.79
  6. Step 6: Final answer
    x = 163,078.89

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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.