Home / 105,175.40-145,147.96-57,433.20

Finding the Fourth Proportional to 105,175.40, 145,147.96 and 57,433.20

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Solution

The fourth proportional to 105,175.40, 145,147.96 and 57,433.20 is: 79,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,175.40 : 145,147.96 = 57,433.20 : x
  2. Step 2: Convert to fraction form
    105,175.40/145,147.96 = 57,433.20/x
  3. Step 3: Cross multiply
    105,175.40x = 145,147.96 × 57,433.20
  4. Step 4: Simplify right side
    105,175.40x = 8,336,311,816.27
  5. Step 5: Solve for x
    x = 8,336,311,816.27/105,175.40
  6. Step 6: Final answer
    x = 79,261.04

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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.