Home / 128,585.04-192,707.44-93,165.36

Finding the Fourth Proportional to 128,585.04, 192,707.44 and 93,165.36

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Solution

The fourth proportional to 128,585.04, 192,707.44 and 93,165.36 is: 139,624.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,585.04 : 192,707.44 = 93,165.36 : x
  2. Step 2: Convert to fraction form
    128,585.04/192,707.44 = 93,165.36/x
  3. Step 3: Cross multiply
    128,585.04x = 192,707.44 × 93,165.36
  4. Step 4: Simplify right side
    128,585.04x = 17,953,658,022.28
  5. Step 5: Solve for x
    x = 17,953,658,022.28/128,585.04
  6. Step 6: Final answer
    x = 139,624.78

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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.