Home / 139,746.12-192,867.07-79,336.32

Finding the Fourth Proportional to 139,746.12, 192,867.07 and 79,336.32

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Solution

The fourth proportional to 139,746.12, 192,867.07 and 79,336.32 is: 109,494.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,746.12 : 192,867.07 = 79,336.32 : x
  2. Step 2: Convert to fraction form
    139,746.12/192,867.07 = 79,336.32/x
  3. Step 3: Cross multiply
    139,746.12x = 192,867.07 × 79,336.32
  4. Step 4: Simplify right side
    139,746.12x = 15,301,362,810.15
  5. Step 5: Solve for x
    x = 15,301,362,810.15/139,746.12
  6. Step 6: Final answer
    x = 109,494.01

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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.