Home / 120,208.61-179,853.84-105,104.18

Finding the Fourth Proportional to 120,208.61, 179,853.84 and 105,104.18

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Solution

The fourth proportional to 120,208.61, 179,853.84 and 105,104.18 is: 157,254.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,208.61 : 179,853.84 = 105,104.18 : x
  2. Step 2: Convert to fraction form
    120,208.61/179,853.84 = 105,104.18/x
  3. Step 3: Cross multiply
    120,208.61x = 179,853.84 × 105,104.18
  4. Step 4: Simplify right side
    120,208.61x = 18,903,390,822.69
  5. Step 5: Solve for x
    x = 18,903,390,822.69/120,208.61
  6. Step 6: Final answer
    x = 157,254.88

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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.