Home / 138,091.64-191,288.07-135,292.28

Finding the Fourth Proportional to 138,091.64, 191,288.07 and 135,292.28

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Solution

The fourth proportional to 138,091.64, 191,288.07 and 135,292.28 is: 187,410.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,091.64 : 191,288.07 = 135,292.28 : x
  2. Step 2: Convert to fraction form
    138,091.64/191,288.07 = 135,292.28/x
  3. Step 3: Cross multiply
    138,091.64x = 191,288.07 × 135,292.28
  4. Step 4: Simplify right side
    138,091.64x = 25,879,799,127.10
  5. Step 5: Solve for x
    x = 25,879,799,127.10/138,091.64
  6. Step 6: Final answer
    x = 187,410.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.