Home / 105,343.91-145,373.60-57,596.75

Finding the Fourth Proportional to 105,343.91, 145,373.60 and 57,596.75

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Solution

The fourth proportional to 105,343.91, 145,373.60 and 57,596.75 is: 79,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,343.91 : 145,373.60 = 57,596.75 : x
  2. Step 2: Convert to fraction form
    105,343.91/145,373.60 = 57,596.75/x
  3. Step 3: Cross multiply
    105,343.91x = 145,373.60 × 57,596.75
  4. Step 4: Simplify right side
    105,343.91x = 8,373,046,895.80
  5. Step 5: Solve for x
    x = 8,373,046,895.80/105,343.91
  6. Step 6: Final answer
    x = 79,482.97

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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.