Home / 105,326.44-145,353.22-62,909.40

Finding the Fourth Proportional to 105,326.44, 145,353.22 and 62,909.40

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Solution

The fourth proportional to 105,326.44, 145,353.22 and 62,909.40 is: 86,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,326.44 : 145,353.22 = 62,909.40 : x
  2. Step 2: Convert to fraction form
    105,326.44/145,353.22 = 62,909.40/x
  3. Step 3: Cross multiply
    105,326.44x = 145,353.22 × 62,909.40
  4. Step 4: Simplify right side
    105,326.44x = 9,144,083,858.27
  5. Step 5: Solve for x
    x = 9,144,083,858.27/105,326.44
  6. Step 6: Final answer
    x = 86,816.60

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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.