Home / 142,822.42-214,384.38-139,605.47

Finding the Fourth Proportional to 142,822.42, 214,384.38 and 139,605.47

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Solution

The fourth proportional to 142,822.42, 214,384.38 and 139,605.47 is: 209,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,822.42 : 214,384.38 = 139,605.47 : x
  2. Step 2: Convert to fraction form
    142,822.42/214,384.38 = 139,605.47/x
  3. Step 3: Cross multiply
    142,822.42x = 214,384.38 × 139,605.47
  4. Step 4: Simplify right side
    142,822.42x = 29,929,232,130.56
  5. Step 5: Solve for x
    x = 29,929,232,130.56/142,822.42
  6. Step 6: Final answer
    x = 209,555.56

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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.