Home / 148,829.49-205,388.37-85,187.79

Finding the Fourth Proportional to 148,829.49, 205,388.37 and 85,187.79

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Solution

The fourth proportional to 148,829.49, 205,388.37 and 85,187.79 is: 117,561.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,829.49 : 205,388.37 = 85,187.79 : x
  2. Step 2: Convert to fraction form
    148,829.49/205,388.37 = 85,187.79/x
  3. Step 3: Cross multiply
    148,829.49x = 205,388.37 × 85,187.79
  4. Step 4: Simplify right side
    148,829.49x = 17,496,581,332.00
  5. Step 5: Solve for x
    x = 17,496,581,332.00/148,829.49
  6. Step 6: Final answer
    x = 117,561.25

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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.