Home / 128,206.32-192,048.36-104,598

Finding the Fourth Proportional to 128,206.32, 192,048.36 and 104,598

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Solution

The fourth proportional to 128,206.32, 192,048.36 and 104,598 is: 156,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,206.32 : 192,048.36 = 104,598 : x
  2. Step 2: Convert to fraction form
    128,206.32/192,048.36 = 104,598/x
  3. Step 3: Cross multiply
    128,206.32x = 192,048.36 × 104,598
  4. Step 4: Simplify right side
    128,206.32x = 20,087,874,359.28
  5. Step 5: Solve for x
    x = 20,087,874,359.28/128,206.32
  6. Step 6: Final answer
    x = 156,683.96

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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.