Home / 145,250.86-200,456.94-81,592.42

Finding the Fourth Proportional to 145,250.86, 200,456.94 and 81,592.42

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Solution

The fourth proportional to 145,250.86, 200,456.94 and 81,592.42 is: 112,603.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,250.86 : 200,456.94 = 81,592.42 : x
  2. Step 2: Convert to fraction form
    145,250.86/200,456.94 = 81,592.42/x
  3. Step 3: Cross multiply
    145,250.86x = 200,456.94 × 81,592.42
  4. Step 4: Simplify right side
    145,250.86x = 16,355,766,840.39
  5. Step 5: Solve for x
    x = 16,355,766,840.39/145,250.86
  6. Step 6: Final answer
    x = 112,603.58

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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.