Home / 118,331.37-163,298.07-64,616.76

Finding the Fourth Proportional to 118,331.37, 163,298.07 and 64,616.76

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Solution

The fourth proportional to 118,331.37, 163,298.07 and 64,616.76 is: 89,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,331.37 : 163,298.07 = 64,616.76 : x
  2. Step 2: Convert to fraction form
    118,331.37/163,298.07 = 64,616.76/x
  3. Step 3: Cross multiply
    118,331.37x = 163,298.07 × 64,616.76
  4. Step 4: Simplify right side
    118,331.37x = 10,551,792,197.65
  5. Step 5: Solve for x
    x = 10,551,792,197.65/118,331.37
  6. Step 6: Final answer
    x = 89,171.55

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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.