Home / 105,713.78-145,884.24-57,966.30

Finding the Fourth Proportional to 105,713.78, 145,884.24 and 57,966.30

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Solution

The fourth proportional to 105,713.78, 145,884.24 and 57,966.30 is: 79,993.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,713.78 : 145,884.24 = 57,966.30 : x
  2. Step 2: Convert to fraction form
    105,713.78/145,884.24 = 57,966.30/x
  3. Step 3: Cross multiply
    105,713.78x = 145,884.24 × 57,966.30
  4. Step 4: Simplify right side
    105,713.78x = 8,456,369,621.11
  5. Step 5: Solve for x
    x = 8,456,369,621.11/105,713.78
  6. Step 6: Final answer
    x = 79,993.07

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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.