Home / 261,362.08-392,217.90-111,637.36

Finding the Fourth Proportional to 261,362.08, 392,217.90 and 111,637.36

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Solution

The fourth proportional to 261,362.08, 392,217.90 and 111,637.36 is: 167,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,362.08 : 392,217.90 = 111,637.36 : x
  2. Step 2: Convert to fraction form
    261,362.08/392,217.90 = 111,637.36/x
  3. Step 3: Cross multiply
    261,362.08x = 392,217.90 × 111,637.36
  4. Step 4: Simplify right side
    261,362.08x = 43,786,170,900.74
  5. Step 5: Solve for x
    x = 43,786,170,900.74/261,362.08
  6. Step 6: Final answer
    x = 167,530.69

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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.