Home / 154,928.82-213,996.65-127,803.20

Finding the Fourth Proportional to 154,928.82, 213,996.65 and 127,803.20

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Solution

The fourth proportional to 154,928.82, 213,996.65 and 127,803.20 is: 176,529.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,928.82 : 213,996.65 = 127,803.20 : x
  2. Step 2: Convert to fraction form
    154,928.82/213,996.65 = 127,803.20/x
  3. Step 3: Cross multiply
    154,928.82x = 213,996.65 × 127,803.20
  4. Step 4: Simplify right side
    154,928.82x = 27,349,456,659.28
  5. Step 5: Solve for x
    x = 27,349,456,659.28/154,928.82
  6. Step 6: Final answer
    x = 176,529.17

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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.