Home / 154,259.64-231,331.06-84,100.76

Finding the Fourth Proportional to 154,259.64, 231,331.06 and 84,100.76

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Solution

The fourth proportional to 154,259.64, 231,331.06 and 84,100.76 is: 126,119.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,259.64 : 231,331.06 = 84,100.76 : x
  2. Step 2: Convert to fraction form
    154,259.64/231,331.06 = 84,100.76/x
  3. Step 3: Cross multiply
    154,259.64x = 231,331.06 × 84,100.76
  4. Step 4: Simplify right side
    154,259.64x = 19,455,117,957.61
  5. Step 5: Solve for x
    x = 19,455,117,957.61/154,259.64
  6. Step 6: Final answer
    x = 126,119.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.