Home / 145,236.77-200,403.18-90,782.49

Finding the Fourth Proportional to 145,236.77, 200,403.18 and 90,782.49

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Solution

The fourth proportional to 145,236.77, 200,403.18 and 90,782.49 is: 125,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,236.77 : 200,403.18 = 90,782.49 : x
  2. Step 2: Convert to fraction form
    145,236.77/200,403.18 = 90,782.49/x
  3. Step 3: Cross multiply
    145,236.77x = 200,403.18 × 90,782.49
  4. Step 4: Simplify right side
    145,236.77x = 18,193,099,684.32
  5. Step 5: Solve for x
    x = 18,193,099,684.32/145,236.77
  6. Step 6: Final answer
    x = 125,265.11

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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.