Home / 148,436.78-204,820.89-90,263.84

Finding the Fourth Proportional to 148,436.78, 204,820.89 and 90,263.84

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Solution

The fourth proportional to 148,436.78, 204,820.89 and 90,263.84 is: 124,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,436.78 : 204,820.89 = 90,263.84 : x
  2. Step 2: Convert to fraction form
    148,436.78/204,820.89 = 90,263.84/x
  3. Step 3: Cross multiply
    148,436.78x = 204,820.89 × 90,263.84
  4. Step 4: Simplify right side
    148,436.78x = 18,487,920,043.62
  5. Step 5: Solve for x
    x = 18,487,920,043.62/148,436.78
  6. Step 6: Final answer
    x = 124,550.80

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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.