Home / 157,513.20-236,291.40-52,321.20

Finding the Fourth Proportional to 157,513.20, 236,291.40 and 52,321.20

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Solution

The fourth proportional to 157,513.20, 236,291.40 and 52,321.20 is: 78,488.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,513.20 : 236,291.40 = 52,321.20 : x
  2. Step 2: Convert to fraction form
    157,513.20/236,291.40 = 52,321.20/x
  3. Step 3: Cross multiply
    157,513.20x = 236,291.40 × 52,321.20
  4. Step 4: Simplify right side
    157,513.20x = 12,363,049,597.68
  5. Step 5: Solve for x
    x = 12,363,049,597.68/157,513.20
  6. Step 6: Final answer
    x = 78,488.97

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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.