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Finding the Fourth Proportional to 108,313.36, 162,483 and 38,178.16

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Solution

The fourth proportional to 108,313.36, 162,483 and 38,178.16 is: 57,271.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,313.36 : 162,483 = 38,178.16 : x
  2. Step 2: Convert to fraction form
    108,313.36/162,483 = 38,178.16/x
  3. Step 3: Cross multiply
    108,313.36x = 162,483 × 38,178.16
  4. Step 4: Simplify right side
    108,313.36x = 6,203,301,971.28
  5. Step 5: Solve for x
    x = 6,203,301,971.28/108,313.36
  6. Step 6: Final answer
    x = 57,271.81

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1.5x scale

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.