Home / 219,176.67-328,795.92-85,984.68

Finding the Fourth Proportional to 219,176.67, 328,795.92 and 85,984.68

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Solution

The fourth proportional to 219,176.67, 328,795.92 and 85,984.68 is: 128,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,176.67 : 328,795.92 = 85,984.68 : x
  2. Step 2: Convert to fraction form
    219,176.67/328,795.92 = 85,984.68/x
  3. Step 3: Cross multiply
    219,176.67x = 328,795.92 × 85,984.68
  4. Step 4: Simplify right side
    219,176.67x = 28,271,411,966.51
  5. Step 5: Solve for x
    x = 28,271,411,966.51/219,176.67
  6. Step 6: Final answer
    x = 128,989.15

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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.