Home / 123,119.02-169,903.74-66,530.26

Finding the Fourth Proportional to 123,119.02, 169,903.74 and 66,530.26

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Solution

The fourth proportional to 123,119.02, 169,903.74 and 66,530.26 is: 91,811.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,119.02 : 169,903.74 = 66,530.26 : x
  2. Step 2: Convert to fraction form
    123,119.02/169,903.74 = 66,530.26/x
  3. Step 3: Cross multiply
    123,119.02x = 169,903.74 × 66,530.26
  4. Step 4: Simplify right side
    123,119.02x = 11,303,739,997.17
  5. Step 5: Solve for x
    x = 11,303,739,997.17/123,119.02
  6. Step 6: Final answer
    x = 91,811.48

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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.