Home / 151,920.23-209,652.10-83,938.76

Finding the Fourth Proportional to 151,920.23, 209,652.10 and 83,938.76

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Solution

The fourth proportional to 151,920.23, 209,652.10 and 83,938.76 is: 115,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,920.23 : 209,652.10 = 83,938.76 : x
  2. Step 2: Convert to fraction form
    151,920.23/209,652.10 = 83,938.76/x
  3. Step 3: Cross multiply
    151,920.23x = 209,652.10 × 83,938.76
  4. Step 4: Simplify right side
    151,920.23x = 17,597,936,833.48
  5. Step 5: Solve for x
    x = 17,597,936,833.48/151,920.23
  6. Step 6: Final answer
    x = 115,836.70

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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.