Home / 157,558.02-236,215.88-81,575.12

Finding the Fourth Proportional to 157,558.02, 236,215.88 and 81,575.12

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Solution

The fourth proportional to 157,558.02, 236,215.88 and 81,575.12 is: 122,299.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,558.02 : 236,215.88 = 81,575.12 : x
  2. Step 2: Convert to fraction form
    157,558.02/236,215.88 = 81,575.12/x
  3. Step 3: Cross multiply
    157,558.02x = 236,215.88 × 81,575.12
  4. Step 4: Simplify right side
    157,558.02x = 19,269,338,756.91
  5. Step 5: Solve for x
    x = 19,269,338,756.91/157,558.02
  6. Step 6: Final answer
    x = 122,299.96

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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.