Home / 134,774.57-186,048.68-87,051.20

Finding the Fourth Proportional to 134,774.57, 186,048.68 and 87,051.20

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Solution

The fourth proportional to 134,774.57, 186,048.68 and 87,051.20 is: 120,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,774.57 : 186,048.68 = 87,051.20 : x
  2. Step 2: Convert to fraction form
    134,774.57/186,048.68 = 87,051.20/x
  3. Step 3: Cross multiply
    134,774.57x = 186,048.68 × 87,051.20
  4. Step 4: Simplify right side
    134,774.57x = 16,195,759,486.92
  5. Step 5: Solve for x
    x = 16,195,759,486.92/134,774.57
  6. Step 6: Final answer
    x = 120,169.25

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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.