Home / 139,319.06-192,258.60-75,657.32

Finding the Fourth Proportional to 139,319.06, 192,258.60 and 75,657.32

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Solution

The fourth proportional to 139,319.06, 192,258.60 and 75,657.32 is: 104,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,319.06 : 192,258.60 = 75,657.32 : x
  2. Step 2: Convert to fraction form
    139,319.06/192,258.60 = 75,657.32/x
  3. Step 3: Cross multiply
    139,319.06x = 192,258.60 × 75,657.32
  4. Step 4: Simplify right side
    139,319.06x = 14,545,769,461.66
  5. Step 5: Solve for x
    x = 14,545,769,461.66/139,319.06
  6. Step 6: Final answer
    x = 104,406.17

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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.