Home / 123,384.40-170,270.52-66,795.79

Finding the Fourth Proportional to 123,384.40, 170,270.52 and 66,795.79

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Solution

The fourth proportional to 123,384.40, 170,270.52 and 66,795.79 is: 92,178.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,384.40 : 170,270.52 = 66,795.79 : x
  2. Step 2: Convert to fraction form
    123,384.40/170,270.52 = 66,795.79/x
  3. Step 3: Cross multiply
    123,384.40x = 170,270.52 × 66,795.79
  4. Step 4: Simplify right side
    123,384.40x = 11,373,353,897.11
  5. Step 5: Solve for x
    x = 11,373,353,897.11/123,384.40
  6. Step 6: Final answer
    x = 92,178.22

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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.