Home / 116,947.64-161,461.54-81,125.12

Finding the Fourth Proportional to 116,947.64, 161,461.54 and 81,125.12

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Solution

The fourth proportional to 116,947.64, 161,461.54 and 81,125.12 is: 112,003.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,947.64 : 161,461.54 = 81,125.12 : x
  2. Step 2: Convert to fraction form
    116,947.64/161,461.54 = 81,125.12/x
  3. Step 3: Cross multiply
    116,947.64x = 161,461.54 × 81,125.12
  4. Step 4: Simplify right side
    116,947.64x = 13,098,586,807.88
  5. Step 5: Solve for x
    x = 13,098,586,807.88/116,947.64
  6. Step 6: Final answer
    x = 112,003.86

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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.