Home / 90,581.16-135,261.77-73,974.14

Finding the Fourth Proportional to 90,581.16, 135,261.77 and 73,974.14

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Solution

The fourth proportional to 90,581.16, 135,261.77 and 73,974.14 is: 110,463.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,581.16 : 135,261.77 = 73,974.14 : x
  2. Step 2: Convert to fraction form
    90,581.16/135,261.77 = 73,974.14/x
  3. Step 3: Cross multiply
    90,581.16x = 135,261.77 × 73,974.14
  4. Step 4: Simplify right side
    90,581.16x = 10,005,872,619.25
  5. Step 5: Solve for x
    x = 10,005,872,619.25/90,581.16
  6. Step 6: Final answer
    x = 110,463.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.