Home / 145,415.01-200,677.59-90,996.78

Finding the Fourth Proportional to 145,415.01, 200,677.59 and 90,996.78

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Solution

The fourth proportional to 145,415.01, 200,677.59 and 90,996.78 is: 125,578.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,415.01 : 200,677.59 = 90,996.78 : x
  2. Step 2: Convert to fraction form
    145,415.01/200,677.59 = 90,996.78/x
  3. Step 3: Cross multiply
    145,415.01x = 200,677.59 × 90,996.78
  4. Step 4: Simplify right side
    145,415.01x = 18,261,014,508.16
  5. Step 5: Solve for x
    x = 18,261,014,508.16/145,415.01
  6. Step 6: Final answer
    x = 125,578.61

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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.