Home / 103,715.44-155,572.14-47,539.60

Finding the Fourth Proportional to 103,715.44, 155,572.14 and 47,539.60

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Solution

The fourth proportional to 103,715.44, 155,572.14 and 47,539.60 is: 71,308.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,715.44 : 155,572.14 = 47,539.60 : x
  2. Step 2: Convert to fraction form
    103,715.44/155,572.14 = 47,539.60/x
  3. Step 3: Cross multiply
    103,715.44x = 155,572.14 × 47,539.60
  4. Step 4: Simplify right side
    103,715.44x = 7,395,837,306.74
  5. Step 5: Solve for x
    x = 7,395,837,306.74/103,715.44
  6. Step 6: Final answer
    x = 71,308.93

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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.