Home / 149,783.04-206,700.32-86,133.12

Finding the Fourth Proportional to 149,783.04, 206,700.32 and 86,133.12

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Solution

The fourth proportional to 149,783.04, 206,700.32 and 86,133.12 is: 118,863.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,783.04 : 206,700.32 = 86,133.12 : x
  2. Step 2: Convert to fraction form
    149,783.04/206,700.32 = 86,133.12/x
  3. Step 3: Cross multiply
    149,783.04x = 206,700.32 × 86,133.12
  4. Step 4: Simplify right side
    149,783.04x = 17,803,743,466.60
  5. Step 5: Solve for x
    x = 17,803,743,466.60/149,783.04
  6. Step 6: Final answer
    x = 118,863.55

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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.