Home / 120,108.32-180,962.99-108,723.95

Finding the Fourth Proportional to 120,108.32, 180,962.99 and 108,723.95

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Solution

The fourth proportional to 120,108.32, 180,962.99 and 108,723.95 is: 163,810.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,108.32 : 180,962.99 = 108,723.95 : x
  2. Step 2: Convert to fraction form
    120,108.32/180,962.99 = 108,723.95/x
  3. Step 3: Cross multiply
    120,108.32x = 180,962.99 × 108,723.95
  4. Step 4: Simplify right side
    120,108.32x = 19,675,009,628.18
  5. Step 5: Solve for x
    x = 19,675,009,628.18/120,108.32
  6. Step 6: Final answer
    x = 163,810.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.