Home / 137,570.94-189,767.27-86,502.74

Finding the Fourth Proportional to 137,570.94, 189,767.27 and 86,502.74

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Solution

The fourth proportional to 137,570.94, 189,767.27 and 86,502.74 is: 119,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,570.94 : 189,767.27 = 86,502.74 : x
  2. Step 2: Convert to fraction form
    137,570.94/189,767.27 = 86,502.74/x
  3. Step 3: Cross multiply
    137,570.94x = 189,767.27 × 86,502.74
  4. Step 4: Simplify right side
    137,570.94x = 16,415,387,435.97
  5. Step 5: Solve for x
    x = 16,415,387,435.97/137,570.94
  6. Step 6: Final answer
    x = 119,323.07

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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.