Home / 145,404.60-200,658.68-81,742.92

Finding the Fourth Proportional to 145,404.60, 200,658.68 and 81,742.92

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Solution

The fourth proportional to 145,404.60, 200,658.68 and 81,742.92 is: 112,805.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,404.60 : 200,658.68 = 81,742.92 : x
  2. Step 2: Convert to fraction form
    145,404.60/200,658.68 = 81,742.92/x
  3. Step 3: Cross multiply
    145,404.60x = 200,658.68 × 81,742.92
  4. Step 4: Simplify right side
    145,404.60x = 16,402,426,426.55
  5. Step 5: Solve for x
    x = 16,402,426,426.55/145,404.60
  6. Step 6: Final answer
    x = 112,805.42

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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.