Home / 252,389.86-348,285.45-139,209.70

Finding the Fourth Proportional to 252,389.86, 348,285.45 and 139,209.70

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Solution

The fourth proportional to 252,389.86, 348,285.45 and 139,209.70 is: 192,102.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,389.86 : 348,285.45 = 139,209.70 : x
  2. Step 2: Convert to fraction form
    252,389.86/348,285.45 = 139,209.70/x
  3. Step 3: Cross multiply
    252,389.86x = 348,285.45 × 139,209.70
  4. Step 4: Simplify right side
    252,389.86x = 48,484,713,008.87
  5. Step 5: Solve for x
    x = 48,484,713,008.87/252,389.86
  6. Step 6: Final answer
    x = 192,102.46

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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.