Home / 105,433.58-145,501.97-57,686.91

Finding the Fourth Proportional to 105,433.58, 145,501.97 and 57,686.91

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Solution

The fourth proportional to 105,433.58, 145,501.97 and 57,686.91 is: 79,609.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,433.58 : 145,501.97 = 57,686.91 : x
  2. Step 2: Convert to fraction form
    105,433.58/145,501.97 = 57,686.91/x
  3. Step 3: Cross multiply
    105,433.58x = 145,501.97 × 57,686.91
  4. Step 4: Simplify right side
    105,433.58x = 8,393,558,759.78
  5. Step 5: Solve for x
    x = 8,393,558,759.78/105,433.58
  6. Step 6: Final answer
    x = 79,609.92

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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.