Home / 123,431.48-170,335.58-66,842.92

Finding the Fourth Proportional to 123,431.48, 170,335.58 and 66,842.92

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Solution

The fourth proportional to 123,431.48, 170,335.58 and 66,842.92 is: 92,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,431.48 : 170,335.58 = 66,842.92 : x
  2. Step 2: Convert to fraction form
    123,431.48/170,335.58 = 66,842.92/x
  3. Step 3: Cross multiply
    123,431.48x = 170,335.58 × 66,842.92
  4. Step 4: Simplify right side
    123,431.48x = 11,385,727,547.09
  5. Step 5: Solve for x
    x = 11,385,727,547.09/123,431.48
  6. Step 6: Final answer
    x = 92,243.30

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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.