Home / 118,280.80-163,221.60-64,568.08

Finding the Fourth Proportional to 118,280.80, 163,221.60 and 64,568.08

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Solution

The fourth proportional to 118,280.80, 163,221.60 and 64,568.08 is: 89,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,280.80 : 163,221.60 = 64,568.08 : x
  2. Step 2: Convert to fraction form
    118,280.80/163,221.60 = 64,568.08/x
  3. Step 3: Cross multiply
    118,280.80x = 163,221.60 × 64,568.08
  4. Step 4: Simplify right side
    118,280.80x = 10,538,905,326.53
  5. Step 5: Solve for x
    x = 10,538,905,326.53/118,280.80
  6. Step 6: Final answer
    x = 89,100.73

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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.