Home / 97,136.24-145,383.60-68,617.76

Finding the Fourth Proportional to 97,136.24, 145,383.60 and 68,617.76

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Solution

The fourth proportional to 97,136.24, 145,383.60 and 68,617.76 is: 102,700.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,136.24 : 145,383.60 = 68,617.76 : x
  2. Step 2: Convert to fraction form
    97,136.24/145,383.60 = 68,617.76/x
  3. Step 3: Cross multiply
    97,136.24x = 145,383.60 × 68,617.76
  4. Step 4: Simplify right side
    97,136.24x = 9,975,896,972.74
  5. Step 5: Solve for x
    x = 9,975,896,972.74/97,136.24
  6. Step 6: Final answer
    x = 102,700.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.