Home / 115,711.20-173,624.40-65,829.60

Finding the Fourth Proportional to 115,711.20, 173,624.40 and 65,829.60

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Solution

The fourth proportional to 115,711.20, 173,624.40 and 65,829.60 is: 98,777.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,711.20 : 173,624.40 = 65,829.60 : x
  2. Step 2: Convert to fraction form
    115,711.20/173,624.40 = 65,829.60/x
  3. Step 3: Cross multiply
    115,711.20x = 173,624.40 × 65,829.60
  4. Step 4: Simplify right side
    115,711.20x = 11,429,624,802.24
  5. Step 5: Solve for x
    x = 11,429,624,802.24/115,711.20
  6. Step 6: Final answer
    x = 98,777.17

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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.