Home / 123,430.98-170,334.89-66,842.42

Finding the Fourth Proportional to 123,430.98, 170,334.89 and 66,842.42

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Solution

The fourth proportional to 123,430.98, 170,334.89 and 66,842.42 is: 92,242.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430.98 : 170,334.89 = 66,842.42 : x
  2. Step 2: Convert to fraction form
    123,430.98/170,334.89 = 66,842.42/x
  3. Step 3: Cross multiply
    123,430.98x = 170,334.89 × 66,842.42
  4. Step 4: Simplify right side
    123,430.98x = 11,385,596,258.03
  5. Step 5: Solve for x
    x = 11,385,596,258.03/123,430.98
  6. Step 6: Final answer
    x = 92,242.61

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1.5x scale

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.