Home / 137,055.14-205,442.67-77,765.57

Finding the Fourth Proportional to 137,055.14, 205,442.67 and 77,765.57

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Solution

The fourth proportional to 137,055.14, 205,442.67 and 77,765.57 is: 116,568.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,055.14 : 205,442.67 = 77,765.57 : x
  2. Step 2: Convert to fraction form
    137,055.14/205,442.67 = 77,765.57/x
  3. Step 3: Cross multiply
    137,055.14x = 205,442.67 × 77,765.57
  4. Step 4: Simplify right side
    137,055.14x = 15,976,365,307.66
  5. Step 5: Solve for x
    x = 15,976,365,307.66/137,055.14
  6. Step 6: Final answer
    x = 116,568.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.