Home / 134,979.96-186,264.18-81,282.36

Finding the Fourth Proportional to 134,979.96, 186,264.18 and 81,282.36

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Solution

The fourth proportional to 134,979.96, 186,264.18 and 81,282.36 is: 112,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,979.96 : 186,264.18 = 81,282.36 : x
  2. Step 2: Convert to fraction form
    134,979.96/186,264.18 = 81,282.36/x
  3. Step 3: Cross multiply
    134,979.96x = 186,264.18 × 81,282.36
  4. Step 4: Simplify right side
    134,979.96x = 15,139,992,133.86
  5. Step 5: Solve for x
    x = 15,139,992,133.86/134,979.96
  6. Step 6: Final answer
    x = 112,164.74

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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.