Home / 130,305.58-179,806.53-72,948.04

Finding the Fourth Proportional to 130,305.58, 179,806.53 and 72,948.04

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Solution

The fourth proportional to 130,305.58, 179,806.53 and 72,948.04 is: 100,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,305.58 : 179,806.53 = 72,948.04 : x
  2. Step 2: Convert to fraction form
    130,305.58/179,806.53 = 72,948.04/x
  3. Step 3: Cross multiply
    130,305.58x = 179,806.53 × 72,948.04
  4. Step 4: Simplify right side
    130,305.58x = 13,116,533,942.70
  5. Step 5: Solve for x
    x = 13,116,533,942.70/130,305.58
  6. Step 6: Final answer
    x = 100,659.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.