Home / 103,736.10-155,567.70-47,603.10

Finding the Fourth Proportional to 103,736.10, 155,567.70 and 47,603.10

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Solution

The fourth proportional to 103,736.10, 155,567.70 and 47,603.10 is: 71,387.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,736.10 : 155,567.70 = 47,603.10 : x
  2. Step 2: Convert to fraction form
    103,736.10/155,567.70 = 47,603.10/x
  3. Step 3: Cross multiply
    103,736.10x = 155,567.70 × 47,603.10
  4. Step 4: Simplify right side
    103,736.10x = 7,405,504,779.87
  5. Step 5: Solve for x
    x = 7,405,504,779.87/103,736.10
  6. Step 6: Final answer
    x = 71,387.92

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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.