Home / 286,601.95-429,907.10-109,118.69

Finding the Fourth Proportional to 286,601.95, 429,907.10 and 109,118.69

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Solution

The fourth proportional to 286,601.95, 429,907.10 and 109,118.69 is: 163,679.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,601.95 : 429,907.10 = 109,118.69 : x
  2. Step 2: Convert to fraction form
    286,601.95/429,907.10 = 109,118.69/x
  3. Step 3: Cross multiply
    286,601.95x = 429,907.10 × 109,118.69
  4. Step 4: Simplify right side
    286,601.95x = 46,910,900,908.95
  5. Step 5: Solve for x
    x = 46,910,900,908.95/286,601.95
  6. Step 6: Final answer
    x = 163,679.63

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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.