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Finding the Fourth Proportional to 145,636.90, 218,462.55 and 75,652.90

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Solution

The fourth proportional to 145,636.90, 218,462.55 and 75,652.90 is: 113,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,636.90 : 218,462.55 = 75,652.90 : x
  2. Step 2: Convert to fraction form
    145,636.90/218,462.55 = 75,652.90/x
  3. Step 3: Cross multiply
    145,636.90x = 218,462.55 × 75,652.90
  4. Step 4: Simplify right side
    145,636.90x = 16,527,325,448.90
  5. Step 5: Solve for x
    x = 16,527,325,448.90/145,636.90
  6. Step 6: Final answer
    x = 113,483.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.