Home / 130,296.76-179,817.50-72,935

Finding the Fourth Proportional to 130,296.76, 179,817.50 and 72,935

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Solution

The fourth proportional to 130,296.76, 179,817.50 and 72,935 is: 100,654.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,296.76 : 179,817.50 = 72,935 : x
  2. Step 2: Convert to fraction form
    130,296.76/179,817.50 = 72,935/x
  3. Step 3: Cross multiply
    130,296.76x = 179,817.50 × 72,935
  4. Step 4: Simplify right side
    130,296.76x = 13,114,989,362.50
  5. Step 5: Solve for x
    x = 13,114,989,362.50/130,296.76
  6. Step 6: Final answer
    x = 100,654.76

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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.