Home / 106,506.81-159,638.73-66,544.16

Finding the Fourth Proportional to 106,506.81, 159,638.73 and 66,544.16

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Solution

The fourth proportional to 106,506.81, 159,638.73 and 66,544.16 is: 99,740.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,506.81 : 159,638.73 = 66,544.16 : x
  2. Step 2: Convert to fraction form
    106,506.81/159,638.73 = 66,544.16/x
  3. Step 3: Cross multiply
    106,506.81x = 159,638.73 × 66,544.16
  4. Step 4: Simplify right side
    106,506.81x = 10,623,025,626.17
  5. Step 5: Solve for x
    x = 10,623,025,626.17/106,506.81
  6. Step 6: Final answer
    x = 99,740.35

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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.