Home / 151,512.28-209,088.40-83,531.74

Finding the Fourth Proportional to 151,512.28, 209,088.40 and 83,531.74

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Solution

The fourth proportional to 151,512.28, 209,088.40 and 83,531.74 is: 115,274.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,512.28 : 209,088.40 = 83,531.74 : x
  2. Step 2: Convert to fraction form
    151,512.28/209,088.40 = 83,531.74/x
  3. Step 3: Cross multiply
    151,512.28x = 209,088.40 × 83,531.74
  4. Step 4: Simplify right side
    151,512.28x = 17,465,517,865.82
  5. Step 5: Solve for x
    x = 17,465,517,865.82/151,512.28
  6. Step 6: Final answer
    x = 115,274.60

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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.