Home / 134,975.16-186,220.62-87,288.84

Finding the Fourth Proportional to 134,975.16, 186,220.62 and 87,288.84

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Solution

The fourth proportional to 134,975.16, 186,220.62 and 87,288.84 is: 120,429.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,975.16 : 186,220.62 = 87,288.84 : x
  2. Step 2: Convert to fraction form
    134,975.16/186,220.62 = 87,288.84/x
  3. Step 3: Cross multiply
    134,975.16x = 186,220.62 × 87,288.84
  4. Step 4: Simplify right side
    134,975.16x = 16,254,981,903.88
  5. Step 5: Solve for x
    x = 16,254,981,903.88/134,975.16
  6. Step 6: Final answer
    x = 120,429.43

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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.