Home / 123,320.68-170,182.98-66,732.05

Finding the Fourth Proportional to 123,320.68, 170,182.98 and 66,732.05

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Solution

The fourth proportional to 123,320.68, 170,182.98 and 66,732.05 is: 92,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,320.68 : 170,182.98 = 66,732.05 : x
  2. Step 2: Convert to fraction form
    123,320.68/170,182.98 = 66,732.05/x
  3. Step 3: Cross multiply
    123,320.68x = 170,182.98 × 66,732.05
  4. Step 4: Simplify right side
    123,320.68x = 11,356,659,130.51
  5. Step 5: Solve for x
    x = 11,356,659,130.51/123,320.68
  6. Step 6: Final answer
    x = 92,090.47

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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.