Home / 219,459.15-329,139.41-130,737.87

Finding the Fourth Proportional to 219,459.15, 329,139.41 and 130,737.87

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Solution

The fourth proportional to 219,459.15, 329,139.41 and 130,737.87 is: 196,077.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,459.15 : 329,139.41 = 130,737.87 : x
  2. Step 2: Convert to fraction form
    219,459.15/329,139.41 = 130,737.87/x
  3. Step 3: Cross multiply
    219,459.15x = 329,139.41 × 130,737.87
  4. Step 4: Simplify right side
    219,459.15x = 43,030,984,742.77
  5. Step 5: Solve for x
    x = 43,030,984,742.77/219,459.15
  6. Step 6: Final answer
    x = 196,077.42

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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.