Home / 133,130.79-199,643.94-54,216.54

Finding the Fourth Proportional to 133,130.79, 199,643.94 and 54,216.54

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Solution

The fourth proportional to 133,130.79, 199,643.94 and 54,216.54 is: 81,303.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,130.79 : 199,643.94 = 54,216.54 : x
  2. Step 2: Convert to fraction form
    133,130.79/199,643.94 = 54,216.54/x
  3. Step 3: Cross multiply
    133,130.79x = 199,643.94 × 54,216.54
  4. Step 4: Simplify right side
    133,130.79x = 10,824,003,658.77
  5. Step 5: Solve for x
    x = 10,824,003,658.77/133,130.79
  6. Step 6: Final answer
    x = 81,303.53

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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.