Home / 132,941.45-183,459.77-72,513.39

Finding the Fourth Proportional to 132,941.45, 183,459.77 and 72,513.39

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Solution

The fourth proportional to 132,941.45, 183,459.77 and 72,513.39 is: 100,068.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,941.45 : 183,459.77 = 72,513.39 : x
  2. Step 2: Convert to fraction form
    132,941.45/183,459.77 = 72,513.39/x
  3. Step 3: Cross multiply
    132,941.45x = 183,459.77 × 72,513.39
  4. Step 4: Simplify right side
    132,941.45x = 13,303,288,571.45
  5. Step 5: Solve for x
    x = 13,303,288,571.45/132,941.45
  6. Step 6: Final answer
    x = 100,068.78

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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.