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Finding the Fourth Proportional to 108,357.72, 149,223.60 and 101,607.12

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Solution

The fourth proportional to 108,357.72, 149,223.60 and 101,607.12 is: 139,927.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,357.72 : 149,223.60 = 101,607.12 : x
  2. Step 2: Convert to fraction form
    108,357.72/149,223.60 = 101,607.12/x
  3. Step 3: Cross multiply
    108,357.72x = 149,223.60 × 101,607.12
  4. Step 4: Simplify right side
    108,357.72x = 15,162,180,232.03
  5. Step 5: Solve for x
    x = 15,162,180,232.03/108,357.72
  6. Step 6: Final answer
    x = 139,927.09

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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.