Home / 145,076.26-200,224.79-81,417.55

Finding the Fourth Proportional to 145,076.26, 200,224.79 and 81,417.55

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Solution

The fourth proportional to 145,076.26, 200,224.79 and 81,417.55 is: 112,367.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,076.26 : 200,224.79 = 81,417.55 : x
  2. Step 2: Convert to fraction form
    145,076.26/200,224.79 = 81,417.55/x
  3. Step 3: Cross multiply
    145,076.26x = 200,224.79 × 81,417.55
  4. Step 4: Simplify right side
    145,076.26x = 16,301,811,248.73
  5. Step 5: Solve for x
    x = 16,301,811,248.73/145,076.26
  6. Step 6: Final answer
    x = 112,367.19

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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.