Home / 135,178.04-186,483.69-87,446.77

Finding the Fourth Proportional to 135,178.04, 186,483.69 and 87,446.77

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Solution

The fourth proportional to 135,178.04, 186,483.69 and 87,446.77 is: 120,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,178.04 : 186,483.69 = 87,446.77 : x
  2. Step 2: Convert to fraction form
    135,178.04/186,483.69 = 87,446.77/x
  3. Step 3: Cross multiply
    135,178.04x = 186,483.69 × 87,446.77
  4. Step 4: Simplify right side
    135,178.04x = 16,307,396,348.18
  5. Step 5: Solve for x
    x = 16,307,396,348.18/135,178.04
  6. Step 6: Final answer
    x = 120,636.43

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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.