Home / 116,710.90-174,785.70-66,639.23

Finding the Fourth Proportional to 116,710.90, 174,785.70 and 66,639.23

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Solution

The fourth proportional to 116,710.90, 174,785.70 and 66,639.23 is: 99,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,710.90 : 174,785.70 = 66,639.23 : x
  2. Step 2: Convert to fraction form
    116,710.90/174,785.70 = 66,639.23/x
  3. Step 3: Cross multiply
    116,710.90x = 174,785.70 × 66,639.23
  4. Step 4: Simplify right side
    116,710.90x = 11,647,584,463.01
  5. Step 5: Solve for x
    x = 11,647,584,463.01/116,710.90
  6. Step 6: Final answer
    x = 99,798.60

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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.