Home / 123,494.06-170,421.98-66,905.43

Finding the Fourth Proportional to 123,494.06, 170,421.98 and 66,905.43

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Solution

The fourth proportional to 123,494.06, 170,421.98 and 66,905.43 is: 92,329.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,494.06 : 170,421.98 = 66,905.43 : x
  2. Step 2: Convert to fraction form
    123,494.06/170,421.98 = 66,905.43/x
  3. Step 3: Cross multiply
    123,494.06x = 170,421.98 × 66,905.43
  4. Step 4: Simplify right side
    123,494.06x = 11,402,155,518.82
  5. Step 5: Solve for x
    x = 11,402,155,518.82/123,494.06
  6. Step 6: Final answer
    x = 92,329.59

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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.