Home / 151,070.66-208,478.88-82,160.75

Finding the Fourth Proportional to 151,070.66, 208,478.88 and 82,160.75

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Solution

The fourth proportional to 151,070.66, 208,478.88 and 82,160.75 is: 113,382.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,070.66 : 208,478.88 = 82,160.75 : x
  2. Step 2: Convert to fraction form
    151,070.66/208,478.88 = 82,160.75/x
  3. Step 3: Cross multiply
    151,070.66x = 208,478.88 × 82,160.75
  4. Step 4: Simplify right side
    151,070.66x = 17,128,781,661.16
  5. Step 5: Solve for x
    x = 17,128,781,661.16/151,070.66
  6. Step 6: Final answer
    x = 113,382.58

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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.