Home / 116,390.12-160,632.08-65,402.96

Finding the Fourth Proportional to 116,390.12, 160,632.08 and 65,402.96

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Solution

The fourth proportional to 116,390.12, 160,632.08 and 65,402.96 is: 90,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,390.12 : 160,632.08 = 65,402.96 : x
  2. Step 2: Convert to fraction form
    116,390.12/160,632.08 = 65,402.96/x
  3. Step 3: Cross multiply
    116,390.12x = 160,632.08 × 65,402.96
  4. Step 4: Simplify right side
    116,390.12x = 10,505,813,502.96
  5. Step 5: Solve for x
    x = 10,505,813,502.96/116,390.12
  6. Step 6: Final answer
    x = 90,263.79

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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.