Home / 286,134.75-429,278.67-99,146.25

Finding the Fourth Proportional to 286,134.75, 429,278.67 and 99,146.25

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Solution

The fourth proportional to 286,134.75, 429,278.67 and 99,146.25 is: 148,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,134.75 : 429,278.67 = 99,146.25 : x
  2. Step 2: Convert to fraction form
    286,134.75/429,278.67 = 99,146.25/x
  3. Step 3: Cross multiply
    286,134.75x = 429,278.67 × 99,146.25
  4. Step 4: Simplify right side
    286,134.75x = 42,561,370,335.49
  5. Step 5: Solve for x
    x = 42,561,370,335.49/286,134.75
  6. Step 6: Final answer
    x = 148,745.90

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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.