Home / 105,651.19-145,777.09-62,611.71

Finding the Fourth Proportional to 105,651.19, 145,777.09 and 62,611.71

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Solution

The fourth proportional to 105,651.19, 145,777.09 and 62,611.71 is: 86,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,651.19 : 145,777.09 = 62,611.71 : x
  2. Step 2: Convert to fraction form
    105,651.19/145,777.09 = 62,611.71/x
  3. Step 3: Cross multiply
    105,651.19x = 145,777.09 × 62,611.71
  4. Step 4: Simplify right side
    105,651.19x = 9,127,352,884.02
  5. Step 5: Solve for x
    x = 9,127,352,884.02/105,651.19
  6. Step 6: Final answer
    x = 86,391.39

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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.