Home / 116,490.48-174,439.26-76,988.40

Finding the Fourth Proportional to 116,490.48, 174,439.26 and 76,988.40

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Solution

The fourth proportional to 116,490.48, 174,439.26 and 76,988.40 is: 115,286.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,490.48 : 174,439.26 = 76,988.40 : x
  2. Step 2: Convert to fraction form
    116,490.48/174,439.26 = 76,988.40/x
  3. Step 3: Cross multiply
    116,490.48x = 174,439.26 × 76,988.40
  4. Step 4: Simplify right side
    116,490.48x = 13,429,799,524.58
  5. Step 5: Solve for x
    x = 13,429,799,524.58/116,490.48
  6. Step 6: Final answer
    x = 115,286.67

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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.