Home / 123,542.40-185,313.60-121,574.10

Finding the Fourth Proportional to 123,542.40, 185,313.60 and 121,574.10

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Solution

The fourth proportional to 123,542.40, 185,313.60 and 121,574.10 is: 182,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,542.40 : 185,313.60 = 121,574.10 : x
  2. Step 2: Convert to fraction form
    123,542.40/185,313.60 = 121,574.10/x
  3. Step 3: Cross multiply
    123,542.40x = 185,313.60 × 121,574.10
  4. Step 4: Simplify right side
    123,542.40x = 22,529,334,137.76
  5. Step 5: Solve for x
    x = 22,529,334,137.76/123,542.40
  6. Step 6: Final answer
    x = 182,361.15

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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.