Home / 100,347.54-138,426.88-60,049.32

Finding the Fourth Proportional to 100,347.54, 138,426.88 and 60,049.32

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Solution

The fourth proportional to 100,347.54, 138,426.88 and 60,049.32 is: 82,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,347.54 : 138,426.88 = 60,049.32 : x
  2. Step 2: Convert to fraction form
    100,347.54/138,426.88 = 60,049.32/x
  3. Step 3: Cross multiply
    100,347.54x = 138,426.88 × 60,049.32
  4. Step 4: Simplify right side
    100,347.54x = 8,312,440,013.72
  5. Step 5: Solve for x
    x = 8,312,440,013.72/100,347.54
  6. Step 6: Final answer
    x = 82,836.51

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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.