Home / 139,529.36-192,547.80-75,866.60

Finding the Fourth Proportional to 139,529.36, 192,547.80 and 75,866.60

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Solution

The fourth proportional to 139,529.36, 192,547.80 and 75,866.60 is: 104,694.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,529.36 : 192,547.80 = 75,866.60 : x
  2. Step 2: Convert to fraction form
    139,529.36/192,547.80 = 75,866.60/x
  3. Step 3: Cross multiply
    139,529.36x = 192,547.80 × 75,866.60
  4. Step 4: Simplify right side
    139,529.36x = 14,607,946,923.48
  5. Step 5: Solve for x
    x = 14,607,946,923.48/139,529.36
  6. Step 6: Final answer
    x = 104,694.43

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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.