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Finding the Fourth Proportional to 116,289.12, 160,480.08 and 65,984.16

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Solution

The fourth proportional to 116,289.12, 160,480.08 and 65,984.16 is: 91,058.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,289.12 : 160,480.08 = 65,984.16 : x
  2. Step 2: Convert to fraction form
    116,289.12/160,480.08 = 65,984.16/x
  3. Step 3: Cross multiply
    116,289.12x = 160,480.08 × 65,984.16
  4. Step 4: Simplify right side
    116,289.12x = 10,589,143,275.53
  5. Step 5: Solve for x
    x = 10,589,143,275.53/116,289.12
  6. Step 6: Final answer
    x = 91,058.76

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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.