Home / 130,905.65-180,608.27-79,892.85

Finding the Fourth Proportional to 130,905.65, 180,608.27 and 79,892.85

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Solution

The fourth proportional to 130,905.65, 180,608.27 and 79,892.85 is: 110,226.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,905.65 : 180,608.27 = 79,892.85 : x
  2. Step 2: Convert to fraction form
    130,905.65/180,608.27 = 79,892.85/x
  3. Step 3: Cross multiply
    130,905.65x = 180,608.27 × 79,892.85
  4. Step 4: Simplify right side
    130,905.65x = 14,429,308,724.17
  5. Step 5: Solve for x
    x = 14,429,308,724.17/130,905.65
  6. Step 6: Final answer
    x = 110,226.79

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1.5x scale

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.