Home / 156,741.06-216,299.10-85,119.54

Finding the Fourth Proportional to 156,741.06, 216,299.10 and 85,119.54

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Solution

The fourth proportional to 156,741.06, 216,299.10 and 85,119.54 is: 117,463.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.06 : 216,299.10 = 85,119.54 : x
  2. Step 2: Convert to fraction form
    156,741.06/216,299.10 = 85,119.54/x
  3. Step 3: Cross multiply
    156,741.06x = 216,299.10 × 85,119.54
  4. Step 4: Simplify right side
    156,741.06x = 18,411,279,894.41
  5. Step 5: Solve for x
    x = 18,411,279,894.41/156,741.06
  6. Step 6: Final answer
    x = 117,463.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.