Home / 119,639.57-179,290.04-66,355.01

Finding the Fourth Proportional to 119,639.57, 179,290.04 and 66,355.01

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Solution

The fourth proportional to 119,639.57, 179,290.04 and 66,355.01 is: 99,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,639.57 : 179,290.04 = 66,355.01 : x
  2. Step 2: Convert to fraction form
    119,639.57/179,290.04 = 66,355.01/x
  3. Step 3: Cross multiply
    119,639.57x = 179,290.04 × 66,355.01
  4. Step 4: Simplify right side
    119,639.57x = 11,896,791,168.88
  5. Step 5: Solve for x
    x = 11,896,791,168.88/119,639.57
  6. Step 6: Final answer
    x = 99,438.60

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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.