Home / 116,688.45-161,032.13-68,941.70

Finding the Fourth Proportional to 116,688.45, 161,032.13 and 68,941.70

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Solution

The fourth proportional to 116,688.45, 161,032.13 and 68,941.70 is: 95,140.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,688.45 : 161,032.13 = 68,941.70 : x
  2. Step 2: Convert to fraction form
    116,688.45/161,032.13 = 68,941.70/x
  3. Step 3: Cross multiply
    116,688.45x = 161,032.13 × 68,941.70
  4. Step 4: Simplify right side
    116,688.45x = 11,101,828,796.82
  5. Step 5: Solve for x
    x = 11,101,828,796.82/116,688.45
  6. Step 6: Final answer
    x = 95,140.77

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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.