Home / 105,501.70-145,660.26-94,151.71

Finding the Fourth Proportional to 105,501.70, 145,660.26 and 94,151.71

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Solution

The fourth proportional to 105,501.70, 145,660.26 and 94,151.71 is: 129,989.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,501.70 : 145,660.26 = 94,151.71 : x
  2. Step 2: Convert to fraction form
    105,501.70/145,660.26 = 94,151.71/x
  3. Step 3: Cross multiply
    105,501.70x = 145,660.26 × 94,151.71
  4. Step 4: Simplify right side
    105,501.70x = 13,714,162,558.04
  5. Step 5: Solve for x
    x = 13,714,162,558.04/105,501.70
  6. Step 6: Final answer
    x = 129,989.97

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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.