Home / 286,098.27-429,147.60-99,109.77

Finding the Fourth Proportional to 286,098.27, 429,147.60 and 99,109.77

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Solution

The fourth proportional to 286,098.27, 429,147.60 and 99,109.77 is: 148,664.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,098.27 : 429,147.60 = 99,109.77 : x
  2. Step 2: Convert to fraction form
    286,098.27/429,147.60 = 99,109.77/x
  3. Step 3: Cross multiply
    286,098.27x = 429,147.60 × 99,109.77
  4. Step 4: Simplify right side
    286,098.27x = 42,532,719,932.05
  5. Step 5: Solve for x
    x = 42,532,719,932.05/286,098.27
  6. Step 6: Final answer
    x = 148,664.72

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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.