Home / 151,560.56-209,148.76-83,580.40

Finding the Fourth Proportional to 151,560.56, 209,148.76 and 83,580.40

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Solution

The fourth proportional to 151,560.56, 209,148.76 and 83,580.40 is: 115,338.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,560.56 : 209,148.76 = 83,580.40 : x
  2. Step 2: Convert to fraction form
    151,560.56/209,148.76 = 83,580.40/x
  3. Step 3: Cross multiply
    151,560.56x = 209,148.76 × 83,580.40
  4. Step 4: Simplify right side
    151,560.56x = 17,480,737,020.30
  5. Step 5: Solve for x
    x = 17,480,737,020.30/151,560.56
  6. Step 6: Final answer
    x = 115,338.30

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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.