Home / 134,664.04-185,835.90-78,107.68

Finding the Fourth Proportional to 134,664.04, 185,835.90 and 78,107.68

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Solution

The fourth proportional to 134,664.04, 185,835.90 and 78,107.68 is: 107,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,664.04 : 185,835.90 = 78,107.68 : x
  2. Step 2: Convert to fraction form
    134,664.04/185,835.90 = 78,107.68/x
  3. Step 3: Cross multiply
    134,664.04x = 185,835.90 × 78,107.68
  4. Step 4: Simplify right side
    134,664.04x = 14,515,211,009.71
  5. Step 5: Solve for x
    x = 14,515,211,009.71/134,664.04
  6. Step 6: Final answer
    x = 107,788.32

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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.