Home / 151,688.67-209,330.22-83,705.64

Finding the Fourth Proportional to 151,688.67, 209,330.22 and 83,705.64

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Solution

The fourth proportional to 151,688.67, 209,330.22 and 83,705.64 is: 115,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,688.67 : 209,330.22 = 83,705.64 : x
  2. Step 2: Convert to fraction form
    151,688.67/209,330.22 = 83,705.64/x
  3. Step 3: Cross multiply
    151,688.67x = 209,330.22 × 83,705.64
  4. Step 4: Simplify right side
    151,688.67x = 17,522,120,036.44
  5. Step 5: Solve for x
    x = 17,522,120,036.44/151,688.67
  6. Step 6: Final answer
    x = 115,513.70

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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.