Home / 145,197.38-200,285.50-91,388.98

Finding the Fourth Proportional to 145,197.38, 200,285.50 and 91,388.98

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Solution

The fourth proportional to 145,197.38, 200,285.50 and 91,388.98 is: 126,062.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,197.38 : 200,285.50 = 91,388.98 : x
  2. Step 2: Convert to fraction form
    145,197.38/200,285.50 = 91,388.98/x
  3. Step 3: Cross multiply
    145,197.38x = 200,285.50 × 91,388.98
  4. Step 4: Simplify right side
    145,197.38x = 18,303,887,553.79
  5. Step 5: Solve for x
    x = 18,303,887,553.79/145,197.38
  6. Step 6: Final answer
    x = 126,062.11

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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.