Home / 123,426.63-170,327.78-66,838.01

Finding the Fourth Proportional to 123,426.63, 170,327.78 and 66,838.01

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Solution

The fourth proportional to 123,426.63, 170,327.78 and 66,838.01 is: 92,235.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,426.63 : 170,327.78 = 66,838.01 : x
  2. Step 2: Convert to fraction form
    123,426.63/170,327.78 = 66,838.01/x
  3. Step 3: Cross multiply
    123,426.63x = 170,327.78 × 66,838.01
  4. Step 4: Simplify right side
    123,426.63x = 11,384,368,677.09
  5. Step 5: Solve for x
    x = 11,384,368,677.09/123,426.63
  6. Step 6: Final answer
    x = 92,235.92

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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.