Home / 135,066.06-186,390.45-74,640.90

Finding the Fourth Proportional to 135,066.06, 186,390.45 and 74,640.90

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Solution

The fourth proportional to 135,066.06, 186,390.45 and 74,640.90 is: 103,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,066.06 : 186,390.45 = 74,640.90 : x
  2. Step 2: Convert to fraction form
    135,066.06/186,390.45 = 74,640.90/x
  3. Step 3: Cross multiply
    135,066.06x = 186,390.45 × 74,640.90
  4. Step 4: Simplify right side
    135,066.06x = 13,912,350,939.41
  5. Step 5: Solve for x
    x = 13,912,350,939.41/135,066.06
  6. Step 6: Final answer
    x = 103,004.05

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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.