Home / 106,979.10-160,420.05-47,784.30

Finding the Fourth Proportional to 106,979.10, 160,420.05 and 47,784.30

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Solution

The fourth proportional to 106,979.10, 160,420.05 and 47,784.30 is: 71,654.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,979.10 : 160,420.05 = 47,784.30 : x
  2. Step 2: Convert to fraction form
    106,979.10/160,420.05 = 47,784.30/x
  3. Step 3: Cross multiply
    106,979.10x = 160,420.05 × 47,784.30
  4. Step 4: Simplify right side
    106,979.10x = 7,665,559,795.22
  5. Step 5: Solve for x
    x = 7,665,559,795.22/106,979.10
  6. Step 6: Final answer
    x = 71,654.74

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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.