Home / 103,561.12-155,368.41-47,374.39

Finding the Fourth Proportional to 103,561.12, 155,368.41 and 47,374.39

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Solution

The fourth proportional to 103,561.12, 155,368.41 and 47,374.39 is: 71,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,561.12 : 155,368.41 = 47,374.39 : x
  2. Step 2: Convert to fraction form
    103,561.12/155,368.41 = 47,374.39/x
  3. Step 3: Cross multiply
    103,561.12x = 155,368.41 × 47,374.39
  4. Step 4: Simplify right side
    103,561.12x = 7,360,483,649.02
  5. Step 5: Solve for x
    x = 7,360,483,649.02/103,561.12
  6. Step 6: Final answer
    x = 71,073.81

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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.