Home / 145,182.08-200,351.40-81,524

Finding the Fourth Proportional to 145,182.08, 200,351.40 and 81,524

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Solution

The fourth proportional to 145,182.08, 200,351.40 and 81,524 is: 112,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,182.08 : 200,351.40 = 81,524 : x
  2. Step 2: Convert to fraction form
    145,182.08/200,351.40 = 81,524/x
  3. Step 3: Cross multiply
    145,182.08x = 200,351.40 × 81,524
  4. Step 4: Simplify right side
    145,182.08x = 16,333,447,533.60
  5. Step 5: Solve for x
    x = 16,333,447,533.60/145,182.08
  6. Step 6: Final answer
    x = 112,503.19

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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.