Home / 149,919.04-206,912.10-86,244.40

Finding the Fourth Proportional to 149,919.04, 206,912.10 and 86,244.40

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Solution

The fourth proportional to 149,919.04, 206,912.10 and 86,244.40 is: 119,030.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,919.04 : 206,912.10 = 86,244.40 : x
  2. Step 2: Convert to fraction form
    149,919.04/206,912.10 = 86,244.40/x
  3. Step 3: Cross multiply
    149,919.04x = 206,912.10 × 86,244.40
  4. Step 4: Simplify right side
    149,919.04x = 17,845,009,917.24
  5. Step 5: Solve for x
    x = 17,845,009,917.24/149,919.04
  6. Step 6: Final answer
    x = 119,030.98

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1.5x scale

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.