Home / 112,041.14-154,656.42-100,083.72

Finding the Fourth Proportional to 112,041.14, 154,656.42 and 100,083.72

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Solution

The fourth proportional to 112,041.14, 154,656.42 and 100,083.72 is: 138,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,041.14 : 154,656.42 = 100,083.72 : x
  2. Step 2: Convert to fraction form
    112,041.14/154,656.42 = 100,083.72/x
  3. Step 3: Cross multiply
    112,041.14x = 154,656.42 × 100,083.72
  4. Step 4: Simplify right side
    112,041.14x = 15,478,589,835.48
  5. Step 5: Solve for x
    x = 15,478,589,835.48/112,041.14
  6. Step 6: Final answer
    x = 138,150.95

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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.