Home / 118,321.73-163,284.19-64,605.60

Finding the Fourth Proportional to 118,321.73, 163,284.19 and 64,605.60

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Solution

The fourth proportional to 118,321.73, 163,284.19 and 64,605.60 is: 89,155.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,321.73 : 163,284.19 = 64,605.60 : x
  2. Step 2: Convert to fraction form
    118,321.73/163,284.19 = 64,605.60/x
  3. Step 3: Cross multiply
    118,321.73x = 163,284.19 × 64,605.60
  4. Step 4: Simplify right side
    118,321.73x = 10,549,072,903.95
  5. Step 5: Solve for x
    x = 10,549,072,903.95/118,321.73
  6. Step 6: Final answer
    x = 89,155.84

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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.