Home / 157,904.46-217,907.61-86,285.10

Finding the Fourth Proportional to 157,904.46, 217,907.61 and 86,285.10

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Solution

The fourth proportional to 157,904.46, 217,907.61 and 86,285.10 is: 119,073.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,904.46 : 217,907.61 = 86,285.10 : x
  2. Step 2: Convert to fraction form
    157,904.46/217,907.61 = 86,285.10/x
  3. Step 3: Cross multiply
    157,904.46x = 217,907.61 × 86,285.10
  4. Step 4: Simplify right side
    157,904.46x = 18,802,179,919.61
  5. Step 5: Solve for x
    x = 18,802,179,919.61/157,904.46
  6. Step 6: Final answer
    x = 119,073.14

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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.