Home / 286,254.54-429,381.45-108,719.10

Finding the Fourth Proportional to 286,254.54, 429,381.45 and 108,719.10

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Solution

The fourth proportional to 286,254.54, 429,381.45 and 108,719.10 is: 163,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,254.54 : 429,381.45 = 108,719.10 : x
  2. Step 2: Convert to fraction form
    286,254.54/429,381.45 = 108,719.10/x
  3. Step 3: Cross multiply
    286,254.54x = 429,381.45 × 108,719.10
  4. Step 4: Simplify right side
    286,254.54x = 46,681,964,800.70
  5. Step 5: Solve for x
    x = 46,681,964,800.70/286,254.54
  6. Step 6: Final answer
    x = 163,078.51

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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.