Home / 103,980.12-156,028.50-41,655.48

Finding the Fourth Proportional to 103,980.12, 156,028.50 and 41,655.48

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Solution

The fourth proportional to 103,980.12, 156,028.50 and 41,655.48 is: 62,506.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,980.12 : 156,028.50 = 41,655.48 : x
  2. Step 2: Convert to fraction form
    103,980.12/156,028.50 = 41,655.48/x
  3. Step 3: Cross multiply
    103,980.12x = 156,028.50 × 41,655.48
  4. Step 4: Simplify right side
    103,980.12x = 6,499,442,061.18
  5. Step 5: Solve for x
    x = 6,499,442,061.18/103,980.12
  6. Step 6: Final answer
    x = 62,506.58

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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.