Home / 137,584.31-206,376.50-90,826.25

Finding the Fourth Proportional to 137,584.31, 206,376.50 and 90,826.25

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Solution

The fourth proportional to 137,584.31, 206,376.50 and 90,826.25 is: 136,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,584.31 : 206,376.50 = 90,826.25 : x
  2. Step 2: Convert to fraction form
    137,584.31/206,376.50 = 90,826.25/x
  3. Step 3: Cross multiply
    137,584.31x = 206,376.50 × 90,826.25
  4. Step 4: Simplify right side
    137,584.31x = 18,744,402,778.31
  5. Step 5: Solve for x
    x = 18,744,402,778.31/137,584.31
  6. Step 6: Final answer
    x = 136,239.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.