Home / 145,249.30-200,462.75-81,587.08

Finding the Fourth Proportional to 145,249.30, 200,462.75 and 81,587.08

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Solution

The fourth proportional to 145,249.30, 200,462.75 and 81,587.08 is: 112,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,249.30 : 200,462.75 = 81,587.08 : x
  2. Step 2: Convert to fraction form
    145,249.30/200,462.75 = 81,587.08/x
  3. Step 3: Cross multiply
    145,249.30x = 200,462.75 × 81,587.08
  4. Step 4: Simplify right side
    145,249.30x = 16,355,170,421.27
  5. Step 5: Solve for x
    x = 16,355,170,421.27/145,249.30
  6. Step 6: Final answer
    x = 112,600.68

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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.