Home / 429,050.72-643,579.94-109,202.93

Finding the Fourth Proportional to 429,050.72, 643,579.94 and 109,202.93

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Solution

The fourth proportional to 429,050.72, 643,579.94 and 109,202.93 is: 163,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,050.72 : 643,579.94 = 109,202.93 : x
  2. Step 2: Convert to fraction form
    429,050.72/643,579.94 = 109,202.93/x
  3. Step 3: Cross multiply
    429,050.72x = 643,579.94 × 109,202.93
  4. Step 4: Simplify right side
    429,050.72x = 70,280,813,817.02
  5. Step 5: Solve for x
    x = 70,280,813,817.02/429,050.72
  6. Step 6: Final answer
    x = 163,805.38

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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.