Home / 130,766.76-180,477.15-73,429.79

Finding the Fourth Proportional to 130,766.76, 180,477.15 and 73,429.79

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Solution

The fourth proportional to 130,766.76, 180,477.15 and 73,429.79 is: 101,343.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,766.76 : 180,477.15 = 73,429.79 : x
  2. Step 2: Convert to fraction form
    130,766.76/180,477.15 = 73,429.79/x
  3. Step 3: Cross multiply
    130,766.76x = 180,477.15 × 73,429.79
  4. Step 4: Simplify right side
    130,766.76x = 13,252,399,491.92
  5. Step 5: Solve for x
    x = 13,252,399,491.92/130,766.76
  6. Step 6: Final answer
    x = 101,343.80

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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.