Home / 136,795.04-188,780.33-85,809.92

Finding the Fourth Proportional to 136,795.04, 188,780.33 and 85,809.92

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Solution

The fourth proportional to 136,795.04, 188,780.33 and 85,809.92 is: 118,419.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,795.04 : 188,780.33 = 85,809.92 : x
  2. Step 2: Convert to fraction form
    136,795.04/188,780.33 = 85,809.92/x
  3. Step 3: Cross multiply
    136,795.04x = 188,780.33 × 85,809.92
  4. Step 4: Simplify right side
    136,795.04x = 16,199,225,014.87
  5. Step 5: Solve for x
    x = 16,199,225,014.87/136,795.04
  6. Step 6: Final answer
    x = 118,419.68

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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.