Home / 185,508.48-278,260.02-128,529.84

Finding the Fourth Proportional to 185,508.48, 278,260.02 and 128,529.84

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Solution

The fourth proportional to 185,508.48, 278,260.02 and 128,529.84 is: 192,792.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,508.48 : 278,260.02 = 128,529.84 : x
  2. Step 2: Convert to fraction form
    185,508.48/278,260.02 = 128,529.84/x
  3. Step 3: Cross multiply
    185,508.48x = 278,260.02 × 128,529.84
  4. Step 4: Simplify right side
    185,508.48x = 35,764,715,849.00
  5. Step 5: Solve for x
    x = 35,764,715,849.00/185,508.48
  6. Step 6: Final answer
    x = 192,792.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.