Home / 157,427.70-236,141.55-82,518.90

Finding the Fourth Proportional to 157,427.70, 236,141.55 and 82,518.90

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Solution

The fourth proportional to 157,427.70, 236,141.55 and 82,518.90 is: 123,778.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,427.70 : 236,141.55 = 82,518.90 : x
  2. Step 2: Convert to fraction form
    157,427.70/236,141.55 = 82,518.90/x
  3. Step 3: Cross multiply
    157,427.70x = 236,141.55 × 82,518.90
  4. Step 4: Simplify right side
    157,427.70x = 19,486,140,950.30
  5. Step 5: Solve for x
    x = 19,486,140,950.30/157,427.70
  6. Step 6: Final answer
    x = 123,778.35

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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.