Home / 149,023.93-205,654.40-81,041.55

Finding the Fourth Proportional to 149,023.93, 205,654.40 and 81,041.55

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Solution

The fourth proportional to 149,023.93, 205,654.40 and 81,041.55 is: 111,838.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,023.93 : 205,654.40 = 81,041.55 : x
  2. Step 2: Convert to fraction form
    149,023.93/205,654.40 = 81,041.55/x
  3. Step 3: Cross multiply
    149,023.93x = 205,654.40 × 81,041.55
  4. Step 4: Simplify right side
    149,023.93x = 16,666,551,340.32
  5. Step 5: Solve for x
    x = 16,666,551,340.32/149,023.93
  6. Step 6: Final answer
    x = 111,838.09

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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.