Home / 190,305.63-262,618.16-105,423.39

Finding the Fourth Proportional to 190,305.63, 262,618.16 and 105,423.39

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Solution

The fourth proportional to 190,305.63, 262,618.16 and 105,423.39 is: 145,482.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,305.63 : 262,618.16 = 105,423.39 : x
  2. Step 2: Convert to fraction form
    190,305.63/262,618.16 = 105,423.39/x
  3. Step 3: Cross multiply
    190,305.63x = 262,618.16 × 105,423.39
  4. Step 4: Simplify right side
    190,305.63x = 27,686,096,175.65
  5. Step 5: Solve for x
    x = 27,686,096,175.65/190,305.63
  6. Step 6: Final answer
    x = 145,482.28

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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.