Home / 116,531.60-174,928.80-77,165.60

Finding the Fourth Proportional to 116,531.60, 174,928.80 and 77,165.60

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Solution

The fourth proportional to 116,531.60, 174,928.80 and 77,165.60 is: 115,835.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,531.60 : 174,928.80 = 77,165.60 : x
  2. Step 2: Convert to fraction form
    116,531.60/174,928.80 = 77,165.60/x
  3. Step 3: Cross multiply
    116,531.60x = 174,928.80 × 77,165.60
  4. Step 4: Simplify right side
    116,531.60x = 13,498,485,809.28
  5. Step 5: Solve for x
    x = 13,498,485,809.28/116,531.60
  6. Step 6: Final answer
    x = 115,835.41

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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.