Home / 115,739.35-173,410.60-77,717.35

Finding the Fourth Proportional to 115,739.35, 173,410.60 and 77,717.35

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Solution

The fourth proportional to 115,739.35, 173,410.60 and 77,717.35 is: 116,442.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,739.35 : 173,410.60 = 77,717.35 : x
  2. Step 2: Convert to fraction form
    115,739.35/173,410.60 = 77,717.35/x
  3. Step 3: Cross multiply
    115,739.35x = 173,410.60 × 77,717.35
  4. Step 4: Simplify right side
    115,739.35x = 13,477,011,957.53
  5. Step 5: Solve for x
    x = 13,477,011,957.53/115,739.35
  6. Step 6: Final answer
    x = 116,442.79

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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.