Home / 150,463.40-207,705.62-105,318.64

Finding the Fourth Proportional to 150,463.40, 207,705.62 and 105,318.64

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Solution

The fourth proportional to 150,463.40, 207,705.62 and 105,318.64 is: 145,386.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,463.40 : 207,705.62 = 105,318.64 : x
  2. Step 2: Convert to fraction form
    150,463.40/207,705.62 = 105,318.64/x
  3. Step 3: Cross multiply
    150,463.40x = 207,705.62 × 105,318.64
  4. Step 4: Simplify right side
    150,463.40x = 21,875,273,418.76
  5. Step 5: Solve for x
    x = 21,875,273,418.76/150,463.40
  6. Step 6: Final answer
    x = 145,386.01

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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.