Home / 137,327.64-189,528.32-76,886.61

Finding the Fourth Proportional to 137,327.64, 189,528.32 and 76,886.61

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Solution

The fourth proportional to 137,327.64, 189,528.32 and 76,886.61 is: 106,112.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,327.64 : 189,528.32 = 76,886.61 : x
  2. Step 2: Convert to fraction form
    137,327.64/189,528.32 = 76,886.61/x
  3. Step 3: Cross multiply
    137,327.64x = 189,528.32 × 76,886.61
  4. Step 4: Simplify right side
    137,327.64x = 14,572,189,076.15
  5. Step 5: Solve for x
    x = 14,572,189,076.15/137,327.64
  6. Step 6: Final answer
    x = 106,112.57

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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.