Home / 118,318.85-163,286.63-64,608.85

Finding the Fourth Proportional to 118,318.85, 163,286.63 and 64,608.85

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Solution

The fourth proportional to 118,318.85, 163,286.63 and 64,608.85 is: 89,163.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,318.85 : 163,286.63 = 64,608.85 : x
  2. Step 2: Convert to fraction form
    118,318.85/163,286.63 = 64,608.85/x
  3. Step 3: Cross multiply
    118,318.85x = 163,286.63 × 64,608.85
  4. Step 4: Simplify right side
    118,318.85x = 10,549,761,061.63
  5. Step 5: Solve for x
    x = 10,549,761,061.63/118,318.85
  6. Step 6: Final answer
    x = 89,163.82

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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.