Home / 309,795.04-464,638.88-85,101.92

Finding the Fourth Proportional to 309,795.04, 464,638.88 and 85,101.92

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Solution

The fourth proportional to 309,795.04, 464,638.88 and 85,101.92 is: 127,638.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,795.04 : 464,638.88 = 85,101.92 : x
  2. Step 2: Convert to fraction form
    309,795.04/464,638.88 = 85,101.92/x
  3. Step 3: Cross multiply
    309,795.04x = 464,638.88 × 85,101.92
  4. Step 4: Simplify right side
    309,795.04x = 39,541,660,794.65
  5. Step 5: Solve for x
    x = 39,541,660,794.65/309,795.04
  6. Step 6: Final answer
    x = 127,638.13

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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.