Home / 162,438.82-243,681.09-50,128.15

Finding the Fourth Proportional to 162,438.82, 243,681.09 and 50,128.15

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Solution

The fourth proportional to 162,438.82, 243,681.09 and 50,128.15 is: 75,199.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,438.82 : 243,681.09 = 50,128.15 : x
  2. Step 2: Convert to fraction form
    162,438.82/243,681.09 = 50,128.15/x
  3. Step 3: Cross multiply
    162,438.82x = 243,681.09 × 50,128.15
  4. Step 4: Simplify right side
    162,438.82x = 12,215,282,231.68
  5. Step 5: Solve for x
    x = 12,215,282,231.68/162,438.82
  6. Step 6: Final answer
    x = 75,199.28

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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.