Home / 112,000.95-154,348.65-80,114.49

Finding the Fourth Proportional to 112,000.95, 154,348.65 and 80,114.49

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Solution

The fourth proportional to 112,000.95, 154,348.65 and 80,114.49 is: 110,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,000.95 : 154,348.65 = 80,114.49 : x
  2. Step 2: Convert to fraction form
    112,000.95/154,348.65 = 80,114.49/x
  3. Step 3: Cross multiply
    112,000.95x = 154,348.65 × 80,114.49
  4. Step 4: Simplify right side
    112,000.95x = 12,365,563,376.94
  5. Step 5: Solve for x
    x = 12,365,563,376.94/112,000.95
  6. Step 6: Final answer
    x = 110,405.88

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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.