Home / 130,295.76-179,816.12-72,934

Finding the Fourth Proportional to 130,295.76, 179,816.12 and 72,934

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Solution

The fourth proportional to 130,295.76, 179,816.12 and 72,934 is: 100,653.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,295.76 : 179,816.12 = 72,934 : x
  2. Step 2: Convert to fraction form
    130,295.76/179,816.12 = 72,934/x
  3. Step 3: Cross multiply
    130,295.76x = 179,816.12 × 72,934
  4. Step 4: Simplify right side
    130,295.76x = 13,114,708,896.08
  5. Step 5: Solve for x
    x = 13,114,708,896.08/130,295.76
  6. Step 6: Final answer
    x = 100,653.38

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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.