Home / 116,182.08-160,380.12-78,507.36

Finding the Fourth Proportional to 116,182.08, 160,380.12 and 78,507.36

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Solution

The fourth proportional to 116,182.08, 160,380.12 and 78,507.36 is: 108,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,182.08 : 160,380.12 = 78,507.36 : x
  2. Step 2: Convert to fraction form
    116,182.08/160,380.12 = 78,507.36/x
  3. Step 3: Cross multiply
    116,182.08x = 160,380.12 × 78,507.36
  4. Step 4: Simplify right side
    116,182.08x = 12,591,019,817.68
  5. Step 5: Solve for x
    x = 12,591,019,817.68/116,182.08
  6. Step 6: Final answer
    x = 108,373.17

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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.