Home / 123,447.09-170,354.94-69,000.54

Finding the Fourth Proportional to 123,447.09, 170,354.94 and 69,000.54

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Solution

The fourth proportional to 123,447.09, 170,354.94 and 69,000.54 is: 95,219.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,447.09 : 170,354.94 = 69,000.54 : x
  2. Step 2: Convert to fraction form
    123,447.09/170,354.94 = 69,000.54/x
  3. Step 3: Cross multiply
    123,447.09x = 170,354.94 × 69,000.54
  4. Step 4: Simplify right side
    123,447.09x = 11,754,582,851.67
  5. Step 5: Solve for x
    x = 11,754,582,851.67/123,447.09
  6. Step 6: Final answer
    x = 95,219.60

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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.