Home / 116,718.96-161,138.52-77,090.16

Finding the Fourth Proportional to 116,718.96, 161,138.52 and 77,090.16

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Solution

The fourth proportional to 116,718.96, 161,138.52 and 77,090.16 is: 106,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,718.96 : 161,138.52 = 77,090.16 : x
  2. Step 2: Convert to fraction form
    116,718.96/161,138.52 = 77,090.16/x
  3. Step 3: Cross multiply
    116,718.96x = 161,138.52 × 77,090.16
  4. Step 4: Simplify right side
    116,718.96x = 12,422,194,288.96
  5. Step 5: Solve for x
    x = 12,422,194,288.96/116,718.96
  6. Step 6: Final answer
    x = 106,428.25

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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.