Home / 137,627.48-189,881.08-80,253.84

Finding the Fourth Proportional to 137,627.48, 189,881.08 and 80,253.84

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Solution

The fourth proportional to 137,627.48, 189,881.08 and 80,253.84 is: 110,724.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,627.48 : 189,881.08 = 80,253.84 : x
  2. Step 2: Convert to fraction form
    137,627.48/189,881.08 = 80,253.84/x
  3. Step 3: Cross multiply
    137,627.48x = 189,881.08 × 80,253.84
  4. Step 4: Simplify right side
    137,627.48x = 15,238,685,813.35
  5. Step 5: Solve for x
    x = 15,238,685,813.35/137,627.48
  6. Step 6: Final answer
    x = 110,724.15

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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.