Home / 123,351.57-170,225.01-66,762.81

Finding the Fourth Proportional to 123,351.57, 170,225.01 and 66,762.81

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Solution

The fourth proportional to 123,351.57, 170,225.01 and 66,762.81 is: 92,132.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,351.57 : 170,225.01 = 66,762.81 : x
  2. Step 2: Convert to fraction form
    123,351.57/170,225.01 = 66,762.81/x
  3. Step 3: Cross multiply
    123,351.57x = 170,225.01 × 66,762.81
  4. Step 4: Simplify right side
    123,351.57x = 11,364,699,999.88
  5. Step 5: Solve for x
    x = 11,364,699,999.88/123,351.57
  6. Step 6: Final answer
    x = 92,132.59

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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.