Home / 149,041.26-223,507.80-81,623.40

Finding the Fourth Proportional to 149,041.26, 223,507.80 and 81,623.40

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Solution

The fourth proportional to 149,041.26, 223,507.80 and 81,623.40 is: 122,405.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,041.26 : 223,507.80 = 81,623.40 : x
  2. Step 2: Convert to fraction form
    149,041.26/223,507.80 = 81,623.40/x
  3. Step 3: Cross multiply
    149,041.26x = 223,507.80 × 81,623.40
  4. Step 4: Simplify right side
    149,041.26x = 18,243,466,562.52
  5. Step 5: Solve for x
    x = 18,243,466,562.52/149,041.26
  6. Step 6: Final answer
    x = 122,405.48

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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.