Home / 117,332.55-161,981.57-91,784.54

Finding the Fourth Proportional to 117,332.55, 161,981.57 and 91,784.54

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Solution

The fourth proportional to 117,332.55, 161,981.57 and 91,784.54 is: 126,711.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,332.55 : 161,981.57 = 91,784.54 : x
  2. Step 2: Convert to fraction form
    117,332.55/161,981.57 = 91,784.54/x
  3. Step 3: Cross multiply
    117,332.55x = 161,981.57 × 91,784.54
  4. Step 4: Simplify right side
    117,332.55x = 14,867,404,525.34
  5. Step 5: Solve for x
    x = 14,867,404,525.34/117,332.55
  6. Step 6: Final answer
    x = 126,711.68

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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.