Home / 105,511.20-145,673.40-94,161.24

Finding the Fourth Proportional to 105,511.20, 145,673.40 and 94,161.24

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Solution

The fourth proportional to 105,511.20, 145,673.40 and 94,161.24 is: 130,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,511.20 : 145,673.40 = 94,161.24 : x
  2. Step 2: Convert to fraction form
    105,511.20/145,673.40 = 94,161.24/x
  3. Step 3: Cross multiply
    105,511.20x = 145,673.40 × 94,161.24
  4. Step 4: Simplify right side
    105,511.20x = 13,716,787,979.02
  5. Step 5: Solve for x
    x = 13,716,787,979.02/105,511.20
  6. Step 6: Final answer
    x = 130,003.15

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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.