Home / 286,141.20-429,211.80-99,171.60

Finding the Fourth Proportional to 286,141.20, 429,211.80 and 99,171.60

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Solution

The fourth proportional to 286,141.20, 429,211.80 and 99,171.60 is: 148,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,141.20 : 429,211.80 = 99,171.60 : x
  2. Step 2: Convert to fraction form
    286,141.20/429,211.80 = 99,171.60/x
  3. Step 3: Cross multiply
    286,141.20x = 429,211.80 × 99,171.60
  4. Step 4: Simplify right side
    286,141.20x = 42,565,620,944.88
  5. Step 5: Solve for x
    x = 42,565,620,944.88/286,141.20
  6. Step 6: Final answer
    x = 148,757.40

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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.