Home / 149,612.43-206,436.95-89,188.70

Finding the Fourth Proportional to 149,612.43, 206,436.95 and 89,188.70

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Solution

The fourth proportional to 149,612.43, 206,436.95 and 89,188.70 is: 123,063.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,612.43 : 206,436.95 = 89,188.70 : x
  2. Step 2: Convert to fraction form
    149,612.43/206,436.95 = 89,188.70/x
  3. Step 3: Cross multiply
    149,612.43x = 206,436.95 × 89,188.70
  4. Step 4: Simplify right side
    149,612.43x = 18,411,842,393.25
  5. Step 5: Solve for x
    x = 18,411,842,393.25/149,612.43
  6. Step 6: Final answer
    x = 123,063.59

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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.