Home / 145,110.57-200,241.60-81,436.06

Finding the Fourth Proportional to 145,110.57, 200,241.60 and 81,436.06

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Solution

The fourth proportional to 145,110.57, 200,241.60 and 81,436.06 is: 112,375.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,110.57 : 200,241.60 = 81,436.06 : x
  2. Step 2: Convert to fraction form
    145,110.57/200,241.60 = 81,436.06/x
  3. Step 3: Cross multiply
    145,110.57x = 200,241.60 × 81,436.06
  4. Step 4: Simplify right side
    145,110.57x = 16,306,886,952.10
  5. Step 5: Solve for x
    x = 16,306,886,952.10/145,110.57
  6. Step 6: Final answer
    x = 112,375.60

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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.