Home / 103,126.62-142,345.00-67,322.01

Finding the Fourth Proportional to 103,126.62, 142,345.00 and 67,322.01

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Solution

The fourth proportional to 103,126.62, 142,345.00 and 67,322.01 is: 92,924.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,126.62 : 142,345.00 = 67,322.01 : x
  2. Step 2: Convert to fraction form
    103,126.62/142,345.00 = 67,322.01/x
  3. Step 3: Cross multiply
    103,126.62x = 142,345.00 × 67,322.01
  4. Step 4: Simplify right side
    103,126.62x = 9,582,951,352.36
  5. Step 5: Solve for x
    x = 9,582,951,352.36/103,126.62
  6. Step 6: Final answer
    x = 92,924.13

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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.