Home / 105,203.56-145,143.30-62,173.96

Finding the Fourth Proportional to 105,203.56, 145,143.30 and 62,173.96

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Solution

The fourth proportional to 105,203.56, 145,143.30 and 62,173.96 is: 85,777.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,203.56 : 145,143.30 = 62,173.96 : x
  2. Step 2: Convert to fraction form
    105,203.56/145,143.30 = 62,173.96/x
  3. Step 3: Cross multiply
    105,203.56x = 145,143.30 × 62,173.96
  4. Step 4: Simplify right side
    105,203.56x = 9,024,133,728.47
  5. Step 5: Solve for x
    x = 9,024,133,728.47/105,203.56
  6. Step 6: Final answer
    x = 85,777.84

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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.