Home / 116,838.40-175,257.60-72,320.80

Finding the Fourth Proportional to 116,838.40, 175,257.60 and 72,320.80

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Solution

The fourth proportional to 116,838.40, 175,257.60 and 72,320.80 is: 108,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,838.40 : 175,257.60 = 72,320.80 : x
  2. Step 2: Convert to fraction form
    116,838.40/175,257.60 = 72,320.80/x
  3. Step 3: Cross multiply
    116,838.40x = 175,257.60 × 72,320.80
  4. Step 4: Simplify right side
    116,838.40x = 12,674,769,838.08
  5. Step 5: Solve for x
    x = 12,674,769,838.08/116,838.40
  6. Step 6: Final answer
    x = 108,481.20

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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.