Home / 116,487.40-174,731.10-76,829.80

Finding the Fourth Proportional to 116,487.40, 174,731.10 and 76,829.80

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Solution

The fourth proportional to 116,487.40, 174,731.10 and 76,829.80 is: 115,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,487.40 : 174,731.10 = 76,829.80 : x
  2. Step 2: Convert to fraction form
    116,487.40/174,731.10 = 76,829.80/x
  3. Step 3: Cross multiply
    116,487.40x = 174,731.10 × 76,829.80
  4. Step 4: Simplify right side
    116,487.40x = 13,424,555,466.78
  5. Step 5: Solve for x
    x = 13,424,555,466.78/116,487.40
  6. Step 6: Final answer
    x = 115,244.70

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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.