Home / 134,110.40-200,935.20-87,339.20

Finding the Fourth Proportional to 134,110.40, 200,935.20 and 87,339.20

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Solution

The fourth proportional to 134,110.40, 200,935.20 and 87,339.20 is: 130,858.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,110.40 : 200,935.20 = 87,339.20 : x
  2. Step 2: Convert to fraction form
    134,110.40/200,935.20 = 87,339.20/x
  3. Step 3: Cross multiply
    134,110.40x = 200,935.20 × 87,339.20
  4. Step 4: Simplify right side
    134,110.40x = 17,549,519,619.84
  5. Step 5: Solve for x
    x = 17,549,519,619.84/134,110.40
  6. Step 6: Final answer
    x = 130,858.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.