Home / 105,393.18-145,441.53-57,647.46

Finding the Fourth Proportional to 105,393.18, 145,441.53 and 57,647.46

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Solution

The fourth proportional to 105,393.18, 145,441.53 and 57,647.46 is: 79,552.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,393.18 : 145,441.53 = 57,647.46 : x
  2. Step 2: Convert to fraction form
    105,393.18/145,441.53 = 57,647.46/x
  3. Step 3: Cross multiply
    105,393.18x = 145,441.53 × 57,647.46
  4. Step 4: Simplify right side
    105,393.18x = 8,384,334,783.01
  5. Step 5: Solve for x
    x = 8,384,334,783.01/105,393.18
  6. Step 6: Final answer
    x = 79,552.92

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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.