Home / 145,162.26-200,320.97-81,500.04

Finding the Fourth Proportional to 145,162.26, 200,320.97 and 81,500.04

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Solution

The fourth proportional to 145,162.26, 200,320.97 and 81,500.04 is: 112,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,162.26 : 200,320.97 = 81,500.04 : x
  2. Step 2: Convert to fraction form
    145,162.26/200,320.97 = 81,500.04/x
  3. Step 3: Cross multiply
    145,162.26x = 200,320.97 × 81,500.04
  4. Step 4: Simplify right side
    145,162.26x = 16,326,166,660.34
  5. Step 5: Solve for x
    x = 16,326,166,660.34/145,162.26
  6. Step 6: Final answer
    x = 112,468.40

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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.