Home / 116,862.13-161,320.58-90,961.98

Finding the Fourth Proportional to 116,862.13, 161,320.58 and 90,961.98

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Solution

The fourth proportional to 116,862.13, 161,320.58 and 90,961.98 is: 125,567.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,862.13 : 161,320.58 = 90,961.98 : x
  2. Step 2: Convert to fraction form
    116,862.13/161,320.58 = 90,961.98/x
  3. Step 3: Cross multiply
    116,862.13x = 161,320.58 × 90,961.98
  4. Step 4: Simplify right side
    116,862.13x = 14,674,039,371.55
  5. Step 5: Solve for x
    x = 14,674,039,371.55/116,862.13
  6. Step 6: Final answer
    x = 125,567.11

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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.