Home / 137,541.68-189,808.00-86,588.12

Finding the Fourth Proportional to 137,541.68, 189,808.00 and 86,588.12

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Solution

The fourth proportional to 137,541.68, 189,808.00 and 86,588.12 is: 119,491.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,541.68 : 189,808.00 = 86,588.12 : x
  2. Step 2: Convert to fraction form
    137,541.68/189,808.00 = 86,588.12/x
  3. Step 3: Cross multiply
    137,541.68x = 189,808.00 × 86,588.12
  4. Step 4: Simplify right side
    137,541.68x = 16,435,117,448.02
  5. Step 5: Solve for x
    x = 16,435,117,448.02/137,541.68
  6. Step 6: Final answer
    x = 119,491.91

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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.