Home / 132,929.86-183,410.39-78,483.30

Finding the Fourth Proportional to 132,929.86, 183,410.39 and 78,483.30

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Solution

The fourth proportional to 132,929.86, 183,410.39 and 78,483.30 is: 108,287.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,929.86 : 183,410.39 = 78,483.30 : x
  2. Step 2: Convert to fraction form
    132,929.86/183,410.39 = 78,483.30/x
  3. Step 3: Cross multiply
    132,929.86x = 183,410.39 × 78,483.30
  4. Step 4: Simplify right side
    132,929.86x = 14,394,651,352.02
  5. Step 5: Solve for x
    x = 14,394,651,352.02/132,929.86
  6. Step 6: Final answer
    x = 108,287.57

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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.