Home / 219,639.79-329,500.93-99,705.16

Finding the Fourth Proportional to 219,639.79, 329,500.93 and 99,705.16

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Solution

The fourth proportional to 219,639.79, 329,500.93 and 99,705.16 is: 149,576.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,639.79 : 329,500.93 = 99,705.16 : x
  2. Step 2: Convert to fraction form
    219,639.79/329,500.93 = 99,705.16/x
  3. Step 3: Cross multiply
    219,639.79x = 329,500.93 × 99,705.16
  4. Step 4: Simplify right side
    219,639.79x = 32,852,943,220.46
  5. Step 5: Solve for x
    x = 32,852,943,220.46/219,639.79
  6. Step 6: Final answer
    x = 149,576.46

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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.