Home / 145,165.04-200,322.59-81,505.52

Finding the Fourth Proportional to 145,165.04, 200,322.59 and 81,505.52

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Solution

The fourth proportional to 145,165.04, 200,322.59 and 81,505.52 is: 112,474.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,165.04 : 200,322.59 = 81,505.52 : x
  2. Step 2: Convert to fraction form
    145,165.04/200,322.59 = 81,505.52/x
  3. Step 3: Cross multiply
    145,165.04x = 200,322.59 × 81,505.52
  4. Step 4: Simplify right side
    145,165.04x = 16,327,395,456.56
  5. Step 5: Solve for x
    x = 16,327,395,456.56/145,165.04
  6. Step 6: Final answer
    x = 112,474.71

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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.