Home / 105,234.14-158,561.68-86,924.40

Finding the Fourth Proportional to 105,234.14, 158,561.68 and 86,924.40

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Solution

The fourth proportional to 105,234.14, 158,561.68 and 86,924.40 is: 130,973.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,234.14 : 158,561.68 = 86,924.40 : x
  2. Step 2: Convert to fraction form
    105,234.14/158,561.68 = 86,924.40/x
  3. Step 3: Cross multiply
    105,234.14x = 158,561.68 × 86,924.40
  4. Step 4: Simplify right side
    105,234.14x = 13,782,878,896.99
  5. Step 5: Solve for x
    x = 13,782,878,896.99/105,234.14
  6. Step 6: Final answer
    x = 130,973.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.