Home / 130,603.84-180,201.82-82,839.76

Finding the Fourth Proportional to 130,603.84, 180,201.82 and 82,839.76

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Solution

The fourth proportional to 130,603.84, 180,201.82 and 82,839.76 is: 114,298.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,603.84 : 180,201.82 = 82,839.76 : x
  2. Step 2: Convert to fraction form
    130,603.84/180,201.82 = 82,839.76/x
  3. Step 3: Cross multiply
    130,603.84x = 180,201.82 × 82,839.76
  4. Step 4: Simplify right side
    130,603.84x = 14,927,875,520.36
  5. Step 5: Solve for x
    x = 14,927,875,520.36/130,603.84
  6. Step 6: Final answer
    x = 114,298.90

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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.