Home / 105,784.40-145,983.96-58,036.88

Finding the Fourth Proportional to 105,784.40, 145,983.96 and 58,036.88

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Solution

The fourth proportional to 105,784.40, 145,983.96 and 58,036.88 is: 80,091.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,784.40 : 145,983.96 = 58,036.88 : x
  2. Step 2: Convert to fraction form
    105,784.40/145,983.96 = 58,036.88/x
  3. Step 3: Cross multiply
    105,784.40x = 145,983.96 × 58,036.88
  4. Step 4: Simplify right side
    105,784.40x = 8,472,453,568.44
  5. Step 5: Solve for x
    x = 8,472,453,568.44/105,784.40
  6. Step 6: Final answer
    x = 80,091.71

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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.