Home / 259,671.38-390,192.02-139,816.95

Finding the Fourth Proportional to 259,671.38, 390,192.02 and 139,816.95

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Solution

The fourth proportional to 259,671.38, 390,192.02 and 139,816.95 is: 210,094.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,671.38 : 390,192.02 = 139,816.95 : x
  2. Step 2: Convert to fraction form
    259,671.38/390,192.02 = 139,816.95/x
  3. Step 3: Cross multiply
    259,671.38x = 390,192.02 × 139,816.95
  4. Step 4: Simplify right side
    259,671.38x = 54,555,457,451.65
  5. Step 5: Solve for x
    x = 54,555,457,451.65/259,671.38
  6. Step 6: Final answer
    x = 210,094.23

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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.