Home / 115,741.35-173,413.60-77,719.35

Finding the Fourth Proportional to 115,741.35, 173,413.60 and 77,719.35

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Solution

The fourth proportional to 115,741.35, 173,413.60 and 77,719.35 is: 116,445.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,741.35 : 173,413.60 = 77,719.35 : x
  2. Step 2: Convert to fraction form
    115,741.35/173,413.60 = 77,719.35/x
  3. Step 3: Cross multiply
    115,741.35x = 173,413.60 × 77,719.35
  4. Step 4: Simplify right side
    115,741.35x = 13,477,592,273.16
  5. Step 5: Solve for x
    x = 13,477,592,273.16/115,741.35
  6. Step 6: Final answer
    x = 116,445.78

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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.