Home / 136,954.16-205,440.52-42,178.49

Finding the Fourth Proportional to 136,954.16, 205,440.52 and 42,178.49

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Solution

The fourth proportional to 136,954.16, 205,440.52 and 42,178.49 is: 63,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,954.16 : 205,440.52 = 42,178.49 : x
  2. Step 2: Convert to fraction form
    136,954.16/205,440.52 = 42,178.49/x
  3. Step 3: Cross multiply
    136,954.16x = 205,440.52 × 42,178.49
  4. Step 4: Simplify right side
    136,954.16x = 8,665,170,918.41
  5. Step 5: Solve for x
    x = 8,665,170,918.41/136,954.16
  6. Step 6: Final answer
    x = 63,270.59

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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.