Home / 219,419.35-329,140.43-69,671.37

Finding the Fourth Proportional to 219,419.35, 329,140.43 and 69,671.37

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Solution

The fourth proportional to 219,419.35, 329,140.43 and 69,671.37 is: 104,510.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,419.35 : 329,140.43 = 69,671.37 : x
  2. Step 2: Convert to fraction form
    219,419.35/329,140.43 = 69,671.37/x
  3. Step 3: Cross multiply
    219,419.35x = 329,140.43 × 69,671.37
  4. Step 4: Simplify right side
    219,419.35x = 22,931,665,827.68
  5. Step 5: Solve for x
    x = 22,931,665,827.68/219,419.35
  6. Step 6: Final answer
    x = 104,510.68

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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.