Home / 112,029.03-154,387.49-80,142.57

Finding the Fourth Proportional to 112,029.03, 154,387.49 and 80,142.57

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Solution

The fourth proportional to 112,029.03, 154,387.49 and 80,142.57 is: 110,444.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,029.03 : 154,387.49 = 80,142.57 : x
  2. Step 2: Convert to fraction form
    112,029.03/154,387.49 = 80,142.57/x
  3. Step 3: Cross multiply
    112,029.03x = 154,387.49 × 80,142.57
  4. Step 4: Simplify right side
    112,029.03x = 12,373,009,823.74
  5. Step 5: Solve for x
    x = 12,373,009,823.74/112,029.03
  6. Step 6: Final answer
    x = 110,444.68

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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.