Home / 105,693.06-145,853.24-57,944.76

Finding the Fourth Proportional to 105,693.06, 145,853.24 and 57,944.76

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Solution

The fourth proportional to 105,693.06, 145,853.24 and 57,944.76 is: 79,962.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,693.06 : 145,853.24 = 57,944.76 : x
  2. Step 2: Convert to fraction form
    105,693.06/145,853.24 = 57,944.76/x
  3. Step 3: Cross multiply
    105,693.06x = 145,853.24 × 57,944.76
  4. Step 4: Simplify right side
    105,693.06x = 8,451,430,987.02
  5. Step 5: Solve for x
    x = 8,451,430,987.02/105,693.06
  6. Step 6: Final answer
    x = 79,962.02

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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.