Home / 161,913.30-242,541.90-91,710.60

Finding the Fourth Proportional to 161,913.30, 242,541.90 and 91,710.60

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Solution

The fourth proportional to 161,913.30, 242,541.90 and 91,710.60 is: 137,380.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,913.30 : 242,541.90 = 91,710.60 : x
  2. Step 2: Convert to fraction form
    161,913.30/242,541.90 = 91,710.60/x
  3. Step 3: Cross multiply
    161,913.30x = 242,541.90 × 91,710.60
  4. Step 4: Simplify right side
    161,913.30x = 22,243,663,174.14
  5. Step 5: Solve for x
    x = 22,243,663,174.14/161,913.30
  6. Step 6: Final answer
    x = 137,380.09

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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.