Home / 157,849.65-217,830.06-86,228.28

Finding the Fourth Proportional to 157,849.65, 217,830.06 and 86,228.28

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Solution

The fourth proportional to 157,849.65, 217,830.06 and 86,228.28 is: 118,993.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,849.65 : 217,830.06 = 86,228.28 : x
  2. Step 2: Convert to fraction form
    157,849.65/217,830.06 = 86,228.28/x
  3. Step 3: Cross multiply
    157,849.65x = 217,830.06 × 86,228.28
  4. Step 4: Simplify right side
    157,849.65x = 18,783,111,406.10
  5. Step 5: Solve for x
    x = 18,783,111,406.10/157,849.65
  6. Step 6: Final answer
    x = 118,993.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.