Home / 149,284.96-206,009.04-81,300.40

Finding the Fourth Proportional to 149,284.96, 206,009.04 and 81,300.40

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Solution

The fourth proportional to 149,284.96, 206,009.04 and 81,300.40 is: 112,192.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,284.96 : 206,009.04 = 81,300.40 : x
  2. Step 2: Convert to fraction form
    149,284.96/206,009.04 = 81,300.40/x
  3. Step 3: Cross multiply
    149,284.96x = 206,009.04 × 81,300.40
  4. Step 4: Simplify right side
    149,284.96x = 16,748,617,355.62
  5. Step 5: Solve for x
    x = 16,748,617,355.62/149,284.96
  6. Step 6: Final answer
    x = 112,192.26

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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.