Home / 151,414.79-208,951.40-83,430.23

Finding the Fourth Proportional to 151,414.79, 208,951.40 and 83,430.23

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Solution

The fourth proportional to 151,414.79, 208,951.40 and 83,430.23 is: 115,133.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,414.79 : 208,951.40 = 83,430.23 : x
  2. Step 2: Convert to fraction form
    151,414.79/208,951.40 = 83,430.23/x
  3. Step 3: Cross multiply
    151,414.79x = 208,951.40 × 83,430.23
  4. Step 4: Simplify right side
    151,414.79x = 17,432,862,524.64
  5. Step 5: Solve for x
    x = 17,432,862,524.64/151,414.79
  6. Step 6: Final answer
    x = 115,133.16

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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.