Home / 105,249.79-145,246.80-57,506.10

Finding the Fourth Proportional to 105,249.79, 145,246.80 and 57,506.10

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Solution

The fourth proportional to 105,249.79, 145,246.80 and 57,506.10 is: 79,359.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,249.79 : 145,246.80 = 57,506.10 : x
  2. Step 2: Convert to fraction form
    105,249.79/145,246.80 = 57,506.10/x
  3. Step 3: Cross multiply
    105,249.79x = 145,246.80 × 57,506.10
  4. Step 4: Simplify right side
    105,249.79x = 8,352,577,005.48
  5. Step 5: Solve for x
    x = 8,352,577,005.48/105,249.79
  6. Step 6: Final answer
    x = 79,359.56

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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.