Home / 103,579.36-142,858.53-67,292.50

Finding the Fourth Proportional to 103,579.36, 142,858.53 and 67,292.50

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Solution

The fourth proportional to 103,579.36, 142,858.53 and 67,292.50 is: 92,811.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,579.36 : 142,858.53 = 67,292.50 : x
  2. Step 2: Convert to fraction form
    103,579.36/142,858.53 = 67,292.50/x
  3. Step 3: Cross multiply
    103,579.36x = 142,858.53 × 67,292.50
  4. Step 4: Simplify right side
    103,579.36x = 9,613,307,630.03
  5. Step 5: Solve for x
    x = 9,613,307,630.03/103,579.36
  6. Step 6: Final answer
    x = 92,811.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.