Home / 147,969.13-204,197.75-80,905.45

Finding the Fourth Proportional to 147,969.13, 204,197.75 and 80,905.45

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Solution

The fourth proportional to 147,969.13, 204,197.75 and 80,905.45 is: 111,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,969.13 : 204,197.75 = 80,905.45 : x
  2. Step 2: Convert to fraction form
    147,969.13/204,197.75 = 80,905.45/x
  3. Step 3: Cross multiply
    147,969.13x = 204,197.75 × 80,905.45
  4. Step 4: Simplify right side
    147,969.13x = 16,520,710,852.74
  5. Step 5: Solve for x
    x = 16,520,710,852.74/147,969.13
  6. Step 6: Final answer
    x = 111,649.71

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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.