Home / 123,491.07-170,417.61-66,902.45

Finding the Fourth Proportional to 123,491.07, 170,417.61 and 66,902.45

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Solution

The fourth proportional to 123,491.07, 170,417.61 and 66,902.45 is: 92,325.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,491.07 : 170,417.61 = 66,902.45 : x
  2. Step 2: Convert to fraction form
    123,491.07/170,417.61 = 66,902.45/x
  3. Step 3: Cross multiply
    123,491.07x = 170,417.61 × 66,902.45
  4. Step 4: Simplify right side
    123,491.07x = 11,401,354,780.06
  5. Step 5: Solve for x
    x = 11,401,354,780.06/123,491.07
  6. Step 6: Final answer
    x = 92,325.34

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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.